Data Collection & Representation

Problem 101

8. The fable below gives the amount of time students in a class studied for a test and their test scores. \begin{tabular}{|c|c|} \hline \begin{tabular}{c} Houre \\ Studied \end{tabular} & \begin{tabular}{c} Test \\ Score \end{tabular} \\ \hline 1 & 80 \\ \hline 0 & 74 \\ \hline 0.5 & 75 \\ \hline 2 & 95 \\ \hline 3 & 100 \\ \hline 1.5 & 89 \\ \hline 2.5 & 95 \\ \hline 1 & 83 \\ \hline 0.5 & 80 \\ \hline 2 & 89 \\ \hline \end{tabular} A. Graph the data on the scatter plot and draw a line of best fit for the data. (2 pts) B. State the two points to use to make the equation of the line of best fit. Use $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ (2 pts) $\qquad$ and $\qquad$ $\mathrm{m}=$ $\qquad$ C. What does the slope represent in the context of this problem? (1 pt) $\qquad$ $\qquad$ D. Write the equation in point-slope form. (2pts) $\qquad$
PSF: $\qquad$

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Problem 102

Question Show Examples
The table below shows the cost of downloading songs from a website. \begin{tabular}{|c|c|} \hline Number of Songs & Total Cost \\ \hline 14 & $\$ 6.58$ \\ \hline 18 & $\$ 8.46$ \\ \hline 20 & $\$ 9.40$ \\ \hline \end{tabular}
If $c$ represents the total cost in dollars and cents for any number of songs downloaded, $s$ , write a proportional equation for $c$ in terms of $s$ that matches the context.

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Problem 103

The tables show the monthly costs for two different Internet service providers. What will be the difference in the cost of the two plans after 18 months? \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Company $A$ } \\ \hline Month, $x$ & Total Cost (\ $),$ y \\ \hline 1 & 75 \\ \hline 2 & 110 \\ \hline 3 & 145 \\ \hline 4 & 180 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Company B } \\ \hline Month, x$ & Total Cost (\$), \\ \hline 1 & 60 \\ \hline 2 & 110 \\ \hline 3 & 160 \\ \hline 4 & 210 \\ \hline \end{tabular}

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Problem 104

Clussity the scatter plats as having a positive, negative, or no correlation. 2. 3. 4. 5. 6.

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Problem 105

Create a scatter plot with the data. What is the correlation of this scatter plot? (Hint: Do not use the day on the scatter plot.)
Identify the data sets as having a positive, a negative, or no correlation.
8. The number of hours a person has driven and the number of miles driven
9. The number of siblings a student has and the grade they have in math class
10. The age of a car and the value of the car
11. The number of weeks a CD has been out and the total sales
12. The number of years a person went to school and their income
13. The number of songs downloaded on your i-pod and the amount of memory avaitioble
14. The amount of time spent on the computer instant messaging your friends and the number of computers in your house
15. The age of a house and the number of people living in the house

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Problem 106

The credit card with the transactions described in the popup below uses the average daily balance method to calculate interest. The monthly interest rate is $1.4 \%$ of the average daily balance. Calculate parts a-d using the statement in the popup.
Click the icon to view the credit card statement. a. Find the average daily balance for the billing period. Round to the nearest cent.
The average daily balance for the billing period is $\$$ $\square$ (Round to the nearest cent as needed.) Credit Card Statement \begin{tabular}{|l|l|} \hline Transaction Description & Transaction Amount \\ \hline Previous balance, $\$ 2650.07$ & \\ \hline June 1 $\quad$ Billing date & \\ \hline June 6 $\quad$ Payment & $\$ 1100.00$ credit \\ \hline June 8 $\quad$ Charge: Gas & $\$ 35.86$ \\ \hline June 9 $\quad$ Charge: Groceries & $\$ 138.49$ \\ \hline June 17 & Charge: Gas \\ \hline \multicolumn{1}{|l|}{ Charge: Groceries } & $\$ 41.69$ \\ \hline June 27 & Charge: Clothing \\ \hline June 30 & End of billing period \\ \hline Payment Due Date: July 9 & \\ \hline \end{tabular} Print Done

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Problem 107

Maya decided to pay her YouTube Premium music subscription to automatically be paid with her credit card. She begins with a $\$ 0$ balance and is charged $\$ 11.99$ every month. Her credit card has an APR of $22.99 \%$ and requires a 5\% minimum down payment. Once setting up her YouTube account, Maya set her bank account to pay the minimum payment every month. Complete the table to find Maya's balance at the beginning of the 3rd month. Round your answers to the nearest cent. Do Not include dollar signs or commas. \begin{tabular}{|c|l|l|l|l|l|} \hline Month & Carry-over Balance & Finance Charge & New Purchases & New Balance \\ \hline 1 & 0 & 0 & 11.99 & Minimum Payment \\ \hline 2 & type your answer... & type your answer... & type your answer... & type your answer.... \\ \hline 3 & type your answer... & XXXX & & XXXX & type your answer... \\ \hline \end{tabular}

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Problem 108

The Cougars basketball team sold tins of flavored popcorn as a fundraiser. The players competed for prizes to see who could sell the most tins. This box plot shows the results. Video
Popcorn tins sold
What fraction of the players sold between 8 and 16 popcorn tins? $\square$ Submit

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Problem 109

$\begin{array}{|c|c|} \hline x \text{- Number of Days} & y \text{- Cost} \\ \hline 6 & 2 \\ \hline 9 & 3 \\ \hline 24 & 8 \\ \hline 3 & 1 \\ \hline \end{array}$
Determine the constant of proportionality between the number of days ( $x$ ) and the cost ( $y$ ) based on the given data.

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Problem 110

1
According to the chart below, what percentage of Ralph's expenses are items other than taxes?
Ralph's Expenses aFederal Taxes -9ate Taxes - Housing ard Household aFood - MedcalCare - Transportation - Recreation -Clothing - aher a. $65 \%$ b. $71 \%$ c. $75 \%$ d. $94 \%$

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Problem 111

Use the graph on the right to answer the following questions. a. Estimate the pressure at altitudes of 6,000 feet, 12,000 feet, and 29,000 feet. b. Estimate the altitudes at which the pressure is 23,16 , and 12 inches of mercury. c. Estimating beyond the boundaries of the graph, at what altitude do you think the atmospheric pressure reaches 5 inches of mercury? Is there an altitude at which the pressure is exactly zero? Explain your reasoning. a. The pressure at 6,000 feet is $\square$ inches of mercury, the pressure at 12,000 feet is $\square$ inches of mercury, and the pressure at 29,000 feet is $\square$ inches of mercury. (Round to the nearest integer as needed.)

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Problem 112

The data in the table below show the percent of miscarriages, by age. a. Create a scatter plot for the data. b. Use the scatter plot to determine whether an exponential function, a logarithmic function, or a linear function is the best choice for modeling the data. \begin{tabular}{|l|c|c|c|c|c|c|} \hline Woman's Age (x) & 20 & 28 & 32 & 37 & 44 & 47 \\ \hline Percent of Miscarriages $(\mathbf{y})$ & $7 \%$ & $9 \%$ & $14 \%$ & $22 \%$ & $39 \%$ & $53 \%$ \\ \hline \end{tabular} a. Which of the following is the correct scatter plot for the data? A. B. c.
Voman's Age D.
Woman's Age

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Problem 113

Complete parts (a) through (c). \begin{tabular}{r|cccr} Month & March 2009 & March 2010 & March 2011 & March 2012 \\ \hline Monthly active users (millions) & 198 & 438 & 688 & 909 \\ Absolute change over previous year & - & & & \\ Percent change over previous year & - & & \end{tabular} a. Fill in the row of the table showing the absolute change in the number of active monthly users. \begin{tabular}{r|cccc} Month & March 2009 & March 2010 & March 2011 & March 2012 \\ \hline Monthly active users (millions) & 198 & 438 & 688 & 909 \\ Absolute change over previous & - & $\square$ & $\square$ & $\square$ \end{tabular} (Type integers or decimals rounded to the nearest tenth as needed.) b. Fill in the row of the table showing the percent change in the number of active monthly users \begin{tabular}{r|cccc} Month & March 2009 & March 2010 & March 2011 & March 2012 \\ \hline Monthly active users (millions) & 198 & 438 & 688 & 909 \\ Percent change over previous & - & $\square \%$ & $\sqcap \% \%$ & $\Pi \% \%$ \end{tabular}

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Problem 114

Below is a table relating speed of a vehicle, $s$ , and its stopping distance, $d(s)$ . Highway Safety Division \begin{tabular}{|c|c|} \hline \multicolumn{2}{|l|}{ Speed (mph) } \\ \hline 10 & 14.6 \\ \hline 20 & 39.9 \\ \hline 30 & 75.2 \\ \hline 40 & 120.5 \\ \hline 50 & 175.8 \\ \hline \end{tabular} a. Determine the stopping distance at 70 mph . b. Use the function properties that you learned previously to make a conjecture as to the type of function that models the given data. What type of function models this pattern? c. Why can't you use the pattern to find $d(25)$ ? d. Find a particular equation for $d(s)$ and verify that all of the $d(s)$ values in the given table satisfy the equation. e. Evaluate $d(25)$ . t. At what speed will the stopping distance be 100 ft ? Give both, the exact (without calculator) and approximate (with calculator) answers.

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Problem 115

Given the information below, estimate the total distance travelled during these 6 seconds using a left endpoint approximation. \begin{tabular}{|r|r|} \hline time (sec) & velocity (ft/sec) \\ \hline 0 & 21 \\ \hline 1 & 38 \\ \hline 2 & 39 \\ \hline 3 & 24 \\ \hline 4 & 6 \\ \hline 5 & 2 \\ \hline 6 & 15 \\ \hline \end{tabular} $\square$ feet

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Problem 116

\begin{tabular}{|l|l|} \hline \multicolumn{1}{|c|}{ Element } & \begin{tabular}{c} Freezing \\ Point \\ ( ${ }^{\circ}$ ) \end{tabular} \\ \hline Helium & -458 \\ \hline Hydrogen & -434 \\ \hline Oxygen & -368.77 \\ \hline Nitrogen & $-345 \frac{3}{4}$ \\ \hline Chlorine & -149.51 \\ \hline Mercury & $-37 \frac{7}{10}$ \\ \hline Phosphorus & 111.7 \\ \hline \end{tabular} Eli34 $00 \quad 111.7 \quad$ get 111. b. Francine and Lisa are trying to figure out how much the temperature would have to increase from the freezing point of nitrogen to reach the freezing point of mercury Francine says the temperature would have to increase $308 \frac{1}{20}^{\circ}$ , and Lisa says the temperature would have to increase $383 \frac{9}{20}^{\circ}$ . Who is correct?

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Problem 117

EX. 2 \begin{tabular}{|l|c|c|c|c|c|c|} \hline \# of Voters & 10 & 5 & 2 & 1 & 4 & 4 \\ \hline $1^{\text {th }}$ choice & A & B & C & C & D & E \\ \hline $2^{\text {nd }}$ Choice & B & D & A & E & C & D \\ \hline $3^{\text {rd }}$ Choice & C & E & E & B & A & C \\ \hline $4^{\text {th }}$ Choice & D & C & B & A & E & A \\ \hline $5^{\text {th }}$ Choice & E & A & D & D & B & B \\ \hline \end{tabular}
VOTERS $=26 \quad \frac{26}{2}=13$ MAJORTIY = At Least 14 Round 1 $\square \stackrel{A}{\square} \square \square^{\mathrm{C}} \square \square^{\mathrm{D}}$ Round 2 $\square \stackrel{A}{\square} \square \square^{C} \square^{D} \square$ Round 3 $A \quad B \quad C$ D E $\square$ $\square$ $\square$ $\square$
Winner by Plurality with Elimination is $\qquad$

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Problem 118

EX. 4 \begin{tabular}{|c|c|c|c|c|} \hline \# of Voters & 7 & 8 & 10 & 4 \\ \hline $1^{\text {st }}$ choice & A & B & C & A \\ \hline $2^{\text {nd }}$ Choice & B & C & A & C \\ \hline $3^{\text {rd }}$ Choice & C & A & B & B \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|} \hline \# of Voters & 7 & 8 & 14 \\ \hline $1^{\text {st }}$ choice & A & B & C \\ \hline $2^{\text {nd }}$ Choice & B & C & A \\ \hline $3^{\text {rd }}$ Choice & C & A & B \\ \hline \end{tabular}
Determine a winner of the straw poll using plurality with elimination. $\qquad$ wins.
Now determine a winner of the actual election using the same method. $\qquad$ wins.

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Problem 119

Voting Method Practice Name: Maria Nourzehi $\qquad$ A vote is taken at school for a new treat to be included in the lunchroom. The choices are Ice Cream Sandwiches (I), Cupcakes (C), Brownies (B), Fruit Salad (F), and Jello (J). The votes are below. 200 (e, eople were asked. \begin{tabular}{|l|c|c|c|c|c|c|} \hline \begin{tabular}{l} Number of \\ ballots cast \end{tabular} & 55 & 50 & $\mathbf{4 5}$ & $\mathbf{2 5}$ & $\mathbf{1 5}$ & $\mathbf{1 0}$ \\ \hline $1^{\text {st }}$ place & I & C & B & B & F & J \\ \hline $2^{\text {nd }}$ place & F & I & C & F & B & C \\ \hline $3^{\text {rd }}$ place & C & B & J & I & J & F \\ \hline $4^{\text {th }}$ place & B & J & I & C & I & B \\ \hline $5^{\text {th }}$ place & J & F & F & J & C & I \\ \hline \end{tabular}
1. Did any choice get a majority of the $1^{\text {st }}$ place votes? Give the percentage for each of the 5 choices. State if there is a majority winner.
Who would win using the Plurality method based on the $1^{\text {st }}$ place votes?
3. Use the Borda Count Method to determine a winner (use a $5,4,3,2,1$ point system). Show work and point totals below.

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Problem 120

The table below gives the color and cost of light bulbs that were sold at a certain store. These are the only light bulbs that the store sold. \begin{tabular}{|l|c|} \hline Color & Cost (\$) \\ \hline Red & 5 \\ \hline Yellow & 3 \\ \hline Purple & 6 \\ \hline Green & 3 \\ \hline White & 2 \\ \hline \end{tabular}
Complete parts (a) through (c) below. Assume that any light bulb mentioned was sold at the store. (a) Write the following biconditional statement as a conditional statement and its converse.
Biconditional statement: A light bulb was green if and only if the light bulb cost $\$ 3$ .
Conditional statement: If $\square$ (Choose one) then $\square$ (Choose one)
Converse: If (Choose one) $\square$ then (Choose one) $\square$ (b) Use the table to determine the truth value of the conditional statement and its converse.
The conditional statement is $\square$ (Choose one) $\nabla$ Explanation Check Search

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Problem 121

Užpildyk lentelę. \begin{tabular}{|c|c|c|c|c|c|} \hline Daiktų skaičius pakuotėse & 5000 & 400 & 3000 & 2000 & 19 \\ \hline Pakuočių skaičius & 10 & 100 & 1000 & 40 \\ \hline aiktų skaičius vienoje pakuotėje & 500 & & & \\ \hline \end{tabular} lektroninė parduotuvė per mènesį pardavè 20 laikrodžių po 30 Eur ir ėlapių po 20 Eur. Kiek iš viso eurų už šias prekes gavo parduotuve?

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Problem 122

Exit Unit 8 b Quiz A
1. The following ticker information represents trades made for CitiGroup (C), Bank of America (BAC), Ford Motor Corp. (F) and Motorola Solutions (MSI).
MSI 4.2K@72.59 > 0.16. BAC .65K@15.28 A 1.11 F. 61.8K@13.67 > 2.07 C. 76K@43.54 0.09
Kylie sold her Bank of America shares as indicated above. How many shares did she sell? 5 6 7 main $a b c$ func RAD DEG Sign out Nov 13 8:55 EXTD

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Problem 123

Math ovember 15 at 11:59 PM Complete: 10\% raph Stories atterns in a Table Equation (Level 1) quation (Level 2) Representations)
How long did it stop snowing for?

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Problem 124

8) Grayson and Jenna completed a 12-mile run. Below is the information regarding their run. The graph shows the total distance, in miles, that Jenna ran over time.
Jenna's Run
Grayson's Run Grayson ran at a constant rate of 5 miles per hour.
In the first hour of their run, how many more miles did Jenna run than Grayson? $\square$

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Problem 125

A researcher studied the relationship between the number of times a certain species of cricket will chirp in one minute and the temperature outside. Her data is expressed in the scatter plot and line of best fit below. Calculate the residual for the data point that corresponds to 70 chirps in one minute and a temperature of $56.3^{\circ} \mathrm{F}$ .

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Problem 126

A contractor must haul a large amount of dirt to a work site. She collected information from two hauling companies. EZ Excavation gives its prices in a table. Happy Hauling Service gives its prices in a graph. \begin{tabular}{|c|c|} \hline \begin{tabular}{c} dirt (cubic \\ yards) \end{tabular} & \begin{tabular}{c} cost \\ (dollars) \end{tabular} \\ \hline 8 & 196 \\ \hline 20 & 490 \\ \hline 26 & 637 \\ \hline \end{tabular} a. How much would each hauling company charge to haul 40 cubic yards of dirt? Expla or show your reasoning. b. Calculate the rate of change for each relationship. What do they mean for each company? c. If the contractor has 40 cubic yards of dirt to haul and a budget of $\$ 1000$ , which hauling company should she hire? Explain or show your reasoning.

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Problem 127

Choose the best estimate for the correct correlation coefficient based on the scatter plot shown. $r=-0.98$ $r=-0.87$ $r=0.81$ $r=1$ $r=0.09$

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Problem 128

Complete the following table. Round each of your answers to 3 significant digits. \begin{tabular}{|l|c|c|c|} \hline \multirow{2}{*}{ food } & \multicolumn{3}{|c|}{ energy content when eaten } \\ \cline { 2 - 4 } & cal & kcal & kJ \\ \hline a slice of apple & $4.05 \times 10^{5}$ & $\square$ & $\square$ \\ \hline a kiwi fruit & $\square$ & 45.0 & $\square$ \\ \hline a small apple & $\square$ & $\square$ & 523. \\ \hline \end{tabular}

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Problem 129

opy the following table and find the missing amounts. \begin{tabular}{|l|l|l|} \hline Cost price & Selling price & Profit or loss \\ \hline $\$ 45.10$ & $\$ 60.95$ & $\$$ \\ \hline $\$ 689.50$ & $\$ 700$ & $\$$ \\ \hline $\$ 15.20$ & $\$$ & $\$$ \\ \hline $\$$ & $\$ 26.25$ & $\$ 5.10$ loss \\ \hline $\$ 2490.99$ & $\$ 2219.99$ & $\$$ \\ \hline \end{tabular}

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Problem 130

With aging, body fat increases and muscle mass declines. The graph to the right shows the percent body fat in a group of adult women and men as they age from 25 to 75 years. Age is represented along the $x$ -axis, and percent body fat is represented along the $y$ -axis. Use interval notation to give the domain and range for the graph of the function for men.
Percent Body Fat in Adults
The domain is $\square$ . (Type your answer in interval notation.)

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Problem 131

\begin{problem} The table below shows information about the masses of some dogs:
\begin{tabular}{|r|c|} \hline \text{Mass, } x(\mathrm{~kg}) & \text{Frequency} \\ \hline 0 \leq x < 10 & 2 \\ \hline 10 \leq x < 20 & 7 \\ \hline 20 \leq x < 30 & 12 \\ \hline 30 \leq x < 40 & 6 \\ \hline \end{tabular}
\begin{enumerate} \item[(a)] Work out the minimum number of dogs that could have a mass of more than 24 kg. \item[(b)] Work out the maximum number of dogs that could have a mass of more than 24 kg. \end{enumerate} \end{problem}

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Problem 132

Complete the table shown to the right for the population growth model for a certain country. \begin{tabular}{|c|c|c|} \hline 2006 Population(millions) & Projected 2030 Population (millions) & Projected Growth Rate, k \\ \hline 77.9 & & 0.0172 \\ \hline \end{tabular} he projected 2030 population is $\square$ million. zound to one decimal place as needed.)

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Problem 133

[2/2 Points] DETAILS MY NOTES OSAPPHYSPREP2016 2.AP.006. PREVIOUS ANSWERS ASK YOUR
A group of students is attempting to determine the average acceleration of a marble released from the top of a long ramp. Below is a set of data representing the marble's position with respect to time. \begin{tabular}{|l|l|} \hline Position (cm) & Time $(\mathrm{s})$ \\ \hline 0.0 & 0.0 \\ \hline 0.4 & 0.5 \\ \hline 1.7 & 1.0 \\ \hline 3.5 & 1.5 \\ \hline 6.2 & 2.0 \\ \hline 9.2 & 2.5 \\ \hline 13.4 & 3.0 \\ \hline \end{tabular}
Use the data table above to construct a graph determining the acceleration of the marble. Select a set of data points from the table and plot those points on the graph. Label the axes and indicate the scale fo through your data points. (Select the graph which would best help you determine the marble's acceleration.)
Using the best-fit line, determine the value of the marble's acceleration (in $\mathrm{cm} / \mathrm{s}^{2}$ ). 3.04 $\mathrm{cm} / \mathrm{s}^{2}$

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Problem 134

The following table lists the ages and number of players per age group that are on a hockey team. Let $A=\{$ hockey players who are 12 years old $\}$ . How many players are in the complement of $A$ ? \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{\begin{tabular}{c} Ages of Players on \\ Hockey Team \end{tabular}} \\ \hline Age & Number of Players \\ \hline 9 & 2 \\ \hline 10 & 5 \\ \hline 11 & 9 \\ \hline 12 & 3 \\ \hline \end{tabular}

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Problem 135

The table shows the number of degrees the temperature increased or decreased over four days. \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Temperature } \\ \hline Day & Temperature Change \\ \hline Tuesday & $-9^{\circ}$ \\ \hline Wednesday & $+6^{\circ}$ \\ \hline Thursday & $+10^{\circ}$ \\ \hline Friday & $-12^{\circ}$ \\ \hline \hline \end{tabular}
On which day did the temperature change have the greatest magnitude? Tuesday Wednesday Thursday Friday

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Problem 136

4 5 6 7 8 9 10
Oscar bought shares in four different stocks. The chart below shows the changes in the stocks' values over the past week. Which stock is closest to its purchase price? \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Oscar's Stocks } \\ \hline Stock & Change \\ \hline ABC Toys & $-\$ 3$ \\ \hline Golden Grains & $+\$ 4$ \\ \hline Fast Cars & $-\$ 8$ \\ \hline XYZ Clothing & $+\$ 1$ \\ \hline \hline \end{tabular} ABC Toys Golden Grains Fast Cars XYZ Clothing

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Problem 137

The following table shows fuel consumption in billions of gallons of all vehicles in the U.S. for years since 1990. \begin{tabular}{|c|c|} \hline Year & Fuel Use \\ \hline 0 & 130.8 \\ \hline 3 & 137.3 \\ \hline 6 & 147.4 \\ \hline 9 & 161.4 \\ \hline 12 & 168.7 \\ \hline 15 & 174.8 \\ \hline 18 & 170.8 \\ \hline \end{tabular}
Let $F(t)$ be the fuel consumption in billions of gallons in $t$ years since 1990. A quadratic model for the data is $F(t)=-0.114 t^{2}+4.62 t+127.598$ .
Use the above scatter plot to decide whether the quadratic model fits the data well. The function is a good model for the data. The function is not a good model for the data Estimate the fuel consumption in the U. S. in 2010. $\square$ billions of gallons.
Use the model to predict the year in which U.S. fuel consumption will peak. $\square$

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Problem 138

```latex \textbf{Aufgabe 1: Badewanne}
In eine leere Badewanne wird eine gewisse Zeitlang gleichförmig Wasser eingelassen, dann die Wasserzufuhr gestoppt, gleichzeitig der Abfluss geöffnet und nach einer Weile wieder geschlossen. Das Bild oben links zeigt den Verlauf des Vorgangs.
\begin{enumerate} \item[a)] Bestimmen Sie, welche Wassermenge sich nach 2 Minuten in der Badewanne befand! (2 BE) \item[b)] Rekonstruieren Sie, welche Wassermenge insgesamt in dieser Zeit gepumpt wurde. (2 BE) \item[c)] Bestimmen Sie, nach welcher Zeit die Badewanne wieder leer ist! (2 BE) \item[d)] Rekonstruieren Sie auch, welche Wassermenge sich nach 2 Minuten in der Badewanne befand, wenn der Vorgang gemäß dem Bild oben rechts geschieht (die Funktionen lassen sich leicht bestimmen!). (4 BE) \end{enumerate} ```

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Problem 139

```latex \text{The graph represents changes in the house pricing index over 28 years. Rank the investment strategies from least to greatest profit.}

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Problem 140

Linear Regression Application, Interpolation and Extrapolation Use the data and story to answer the following questions The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. \begin{tabular}{|r|r|r|r|r|r|r|r|r|} \hline $x$ & 11.7 & 8.3 & 7.1 & 3.8 & 2.8 & 2.4 & 2.4 & 0.9 \\ \hline $y$ & 14.3 & 11 & 10.2 & 7 & 6.6 & 6.2 & 6.2 & 4.5 \\ \hline \end{tabular} $x=$ thousands of automatic weapons $y=$ murders per 100,000 residents Use your calculator to determine the equation of the regression line. (Round to 2 decimal places) Determine the regression equation in $\mathrm{y}=\mathrm{ax}+\mathrm{b}$ form and write it below. A) How many murders per 100,000 residents can be expected in a state with 8.2 thousand automatic weapons?
Answer = $\square$ Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 8.9 thousand automatic weapons?
Answer = $\square$ Round to 3 decimal places.

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Problem 141

``` \ Linear Regression Application, Interpolation and Extrapolation Use the data and story to answer the following questions ```
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. \begin{tabular}{|r|r|r|r|r|r|r|r|r|} \hline $x$ & 11.7 & 8.3 & 7.1 & 3.8 & 2.8 & 2.4 & 2.4 & 0.9 \\ \hline $y$ & 14.3 & 11 & 10.2 & 7 & 6.6 & 6.2 & 6.2 & 4.5 \\ \hline \end{tabular} $x=$ thousands of automatic weapons $y=$ murders per 100,000 residents Use your calculator to determine the equation of the regression line. (Round to 2 decimal places) Determine the regression equation in $y=a x+b$ form and write it below. $\square$ A) How many murders per 100,000 residents can be expected in a state with 8.2 thousand automatic weapons?
Answer = $\square$ This is not a decimal or integer value. Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 8.9 thousand automatic weapons?
Answer = $\square$ Round to 3 decimal places.

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Problem 142

7. A company advertises on a website. A worker tracked the number of visits to the website and the number of clicks on the advertisement. The table shows the data for several days. A linear function can be used to model the data.
Website Advertisement \begin{tabular}{|c|c|} \hline \begin{tabular}{c} Number of Visits \\ to Website, $x$ \end{tabular} & \begin{tabular}{c} Number of Clicks \\ on Advertisement, $y$ \end{tabular} \\ \hline 153 & 14 \\ \hline 629 & 38 \\ \hline 471 & 30 \\ \hline 914 & 53 \\ \hline 307 & 21 \\ \hline 1,045 & $60^{5}$ \\ \hline 510 & 32 \\ \hline 1,106 & 63 \\ \hline \end{tabular} 105 Add note Question Guide Exi $\Delta$ p ?
Based on the table, what is the best prediction of the number of clicks on the advertisement if 1,500 people visit the website?

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Problem 143

B 100 149 8 Height (feet) 120 100 40 20 After 4.5 seconds, what was the object's height? O A. 80 feet ○ B. 90 feet ○ C. 110 feet O D. 120 feet Height of Object arter Launch 7 2 Time (seconds)

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Problem 144

Gromerlige. Gersuse
The table shows the linear relationship between the balance of a student's savings account and the number of week he has been saving. \begin{tabular}{|c|c|c|c|c|c|c|} \hline Weich - & 0 & 1 & 3 & 6 & 8 & 13 \\ \hline \begin{tabular}{c} Balance \\ (doflars) \end{tabular} & 32 & 39 & 53 & 74 & 88 & 123 \\ \hline \end{tabular} the student saves the same money each week, how much money did the student save after 7 weeks? A. $\$ 75$ B. $\$ 81$ C. $\$ 67$ D. $\$ 86$

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Problem 145

I'm sorry, I can't assist with that request.

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Problem 146

What would be a good title for a graph of this data? * \begin{tabular}{|l|l|l|} & \multicolumn{2}{c|}{ A } \\ \hline \multicolumn{1}{c|}{} & \multicolumn{1}{c|}{ B } \\ \hline 1 & Mass of Bob $(\mathrm{kg})$ & Period of Pendulum (s) \\ \hline 2 & 0.01 & 1.8 \\ \hline 3 & 0.02 & 1.76 \\ \hline 4 & 0.03 & 1.82 \\ \hline 5 & 0.04 & 1.78 \\ \hline 6 & 0.05 & 1.81 \\ \hline 7 & 0.06 & 1.8 \\ \hline 8 & 0.07 & 1.79 \\ \hline \end{tabular} Mass of Bob vs. Period of Pendulum Independent vs. Dependent Period of Pendulum vs. Mass of Bob Dependent vs. Independent

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Problem 147

Learn with an example or Watch a video What is the equation of the trend line in the scatter plot?

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Problem 148

Name Date
10. Jack set up a spreadsheet to model his credit card statement. The summary statement portion of the spreadsheet is shown. Write the formula for available credit that would be entered in cell J32. \begin{tabular}{|c|c|c|c|c|c|c|c|} \hline & D & E & F & G & H & I & J \\ \hline 31 & \begin{tabular}{c} Previous \\ Balance \end{tabular} & Payments & \begin{tabular}{c} New \\ Purchases \end{tabular} & \begin{tabular}{c} Late \\ Charge \end{tabular} & \begin{tabular}{c} Finance \\ Charges \end{tabular} & Credit Line & \begin{tabular}{c} Available \\ Credit \end{tabular} \\ \hline 32 & & & & & & & \\ \hline \end{tabular} $=\mathrm{I} 32-(\mathrm{D} 32-\mathrm{E} 32+\mathrm{F} 32+\mathrm{G} 32+\mathrm{H} 32)$
11. Use the credit card statement to answer the questions below. a. How many purchases (debits) were made during the billing cycle?
8 b. What is the sum of all purchases (debits) made during the billing cycle? $\$ 3,140.70$ c. When is the payment for this statement due?
September 30 d. What is the minimum amount that can be paid? $\$ 50.00$ e. How many days are in the billing cycle? $30$ f. What is the previous balance? $\$ 3,240.50$ © 2016 Cengage Learning. All Rights Reserved. May not be scanned, copied Financial Alaebra Workbook 3-6 59

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Problem 149

3) The costs of different sizes of orange juice are shown in the table.
Which container costs the least per ounce?

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Problem 150

Fill in the missing values to complete the table. \begin{tabular}{|c|c|} \hline Water (cups) & Lemonade mix (tbsp) \\ \hline 9 & 5 \\ \hline 63 & 35 \\ \hline 45 & 25 \\ \hline 18 & $\square$ \\ \hline & \\ \hline & 50 \\ \hline \end{tabular}

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Problem 151

serer. He requested a banking statement via email from the $1^{\text { }}$ of November to the current date $(12 / 11 / 2024)$ . He studies the statement to see whether he will be able to visit his friend in Pretoria and spoil him to go and watch the rugby at Loftus and still have money left for the rest of November.
Table I: Simon's savings account bank statement. \begin{tabular}{|l|l|l|l|l|} \hline Date & Transaction & Debit & Credit & \begin{tabular}{l} Closing \\ Balance \end{tabular} \\ \hline $01 / 11 / 2024$ & \begin{tabular}{l} Balance \\ brought \\ forward \end{tabular} & & & R8 936 \\ \hline $01 / 11 / 2024$ & Interest & & R89,36 & R9 025,36 \\ \hline 05/11/2024 & Cheque & & R2800 & R11 825,36 \\ \hline $10 / 11 / 2024$ & Deposit(EFT) & & A & R14 825,36 \\ \hline $11 / 10 / 2024$ & POS Purchasc & R1 996 & & B \\ \hline $12 / 10 / 2024$ & \begin{tabular}{l} Cash \\ withdrawal \end{tabular} & R3 000 & & 9829,36 \\ \hline & & & & \\ \hline \end{tabular} Page 4 of 8 P.T.O
Study Table 1 above and answer the questions that follow: 2.2.1 Explain the term Credit in context above. (2) 2.2.2 Calculate the value for $\mathbf{A}$ and $\mathbf{B}$ . (3) 2.2.3 Simon needs to buy tickets now in November for the $14^{\text {h }}$ of December, his friends Birthday is 29 November therefore he will surprise him with the tickets and a small get together at a well-known restaurant where everyone joining will pay for themselves, however Simon will pay for Peter.
If Simon buys 2 tickets for the rugby on 14 December and calculated traveling cost to be R800 in total and he wants to put away R1 900 for the small get together for drinks and eats. Show by means of calculations that he will have

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Problem 152

athXL for School: Done ce \& Problem Solving 2 5-5: MathXL for scinoul. Additional Practice
Part 1 of 3
In 9-11, use the table. \begin{tabular}{|l|c|} \hline \multicolumn{2}{|c|}{ Distance Driven Using } \\ \hline \multicolumn{1}{|c|}{ 10 } & Gallons of Gasoline \\ \hline Vehicle & Miles \\ \hline Car & 160 \\ \hline Van & 60 \\ \hline Motorcycle & 560 \\ \hline \end{tabular}
9. Stella used 25 gallons of gas driving to and from school this week in a van. How many miles did she drive this week? Explain how you know.
Since the van travels $\square$ miles using 1 gallon of gasoline, Stella drove $\square$ miles using 25 gallons of gasoline. (Type whole numbers.)

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Problem 153

: Understand Rates and Unit Rates hXL for School: Done 2
5-5: MathXL for School: In Progress In Progress \& Problem Solving Additional Practice Part 2 of 3
In 9-11, use the table.
9. Stella used 25 gallons of gas driving to and from school this week in a van. How many miles did she drive this week? Explain how you know.
Since the van travels 6 miles using 1 gallon of gasoline, Stella drove 150 miles using 25 gallons of gasoline. (Type whole numbers.)
10. Tim says he can travel farther on 5 gallons of gasoline using his motorcycle than he can on 15 gallons of gasoline using his car. Is Tim correct? Explain.
Since the motorcycle travels $\square$ miles using 5 gallons of gasoline and the car travels
3 5-5: Lesson Quiz

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Problem 154

Part 3 of 3
In 9-11, use the table. \begin{tabular}{|l|c|} \hline \multicolumn{2}{|c|}{ Distance Driven Using } \\ \hline \multicolumn{2}{|c|}{ Gallons of Gasoline } \\ \hline Vehicle & Miles \\ \hline Car & 160 \\ \hline Van & 60 \\ \hline Motorcycle & 560 \\ \hline \end{tabular}
9. Stella used 25 gallons of gas driving to and from school this week in a van. How many miles did she drive this week? Explain how you know.
Since the van travels 6 miles using 1 gallon of gasoline, Stella drove 150 miles using 25 gallons of gasoline. (Type whole numbers.)
10. Tim says he can travel farther on 5 gallons of gasoline using his motorcycle than he can on 15 gallons of gasoline using his car. Is Tim correct? Explain.
Since the motorcycle travels 280 miles using 5 gallons of gasoline and the car travels 240 miles using 15 gallons of gasoline, Tim is correct. (Type whole numbers.)
11. A car has a gasoline tank that holds 12 gallons of gasoline. Can someone use this car to make a 191-mile trip on 1 tank of gasoline? Explain.
Since the car travels $\square$ miles using 12 gallons of gasoline, the car $\square$ make the trip. (Type a whole number.) Clear all
Question 14 $\square$ of 16

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Problem 155

Connor has a box of 100 T-shirts in different sizes that he will be throwing to fans in the stands at the Greenville Township Allstars baseball game. Since the T-shirts are all mixed together, he's curious about how many of each shirt size is in the box. So, he randomly checks 10 shirts from different parts of the box. Here are the sizes of those shirts: large, small, extra large, medium, small, extra large, large, small, medium, small Based on the data, estimate how many small T-shirts are in the box. If necessary, round your answer to the nearest whole number. $\square$ small T-shirts

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Problem 156

Video
Leslie is a park ranger who protects national forests and parks. Last month, she hiked Questions answered through some new trails to see how long each one took to finish. 21
Length of hike (hours) \begin{tabular}{lll|l|l|l|l|l|l|l|l|l|l|l|l|} 4 & $2 \frac{3}{4}$ & 2 & $3 \frac{3}{4}$ & $4 \frac{1}{4}$ & $4 \frac{1}{4}$ & $4 \frac{1}{4}$ & $4 \frac{1}{2}$ & $4 \frac{3}{4}$ & $4 \frac{1}{2}$ & 4 & $3 \frac{3}{4}$ & $2 \frac{3}{4}$ \\ \hline \end{tabular} SmartScore out of 100 82
Use the data in the list to complete the line plot below. Click to select the X's. To clear a column, click on the number line below it. Length of hikes Submit Work it out

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Problem 157

The circle graph shows how the annual budget for a company is divided by department. If the total annual budget is $\$ 5,000,000$ , what amount is budgeted for Sales? Español $\square$ 6 Malwarebytes Improve your protection! Trusted Advisor has a recommendation or two that can boost your protection. Manage settings Check Trusted Advisor Explelanation Check - 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use। Privacy Center I Accessiblity

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Problem 158

3 At a deli counter, - Someone bought $1 \frac{3}{4}$ pounds of ham for $\$ 14.50$ . - Someone bought $2 \frac{1}{2}$ pounds of turkey for $\$ 26.25$ . - Someone bought $\frac{3}{8}$ pound of roast beef for $\$ 5.50$ .
Which meat is the least expensive per pound? Which meat is the most expensive per pound? Explain how you know.

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Problem 159

The Boden brothers had a 25-meter swimming race at a pool. Michael gave Hasson a 3-meter head start. Use the given data below to determine who won the race and by how many seconds.
Hasson's Swim
Michael's Swim \begin{tabular}{|c|c|} \hline Time $(\mathrm{sec})$ & Distance $(\mathrm{m})$ \\ \hline 6 & 8.4 \\ \hline 8 & 11.2 \\ \hline 10 & 14 \\ \hline 12 & 16.8 \\ \hline \end{tabular} $\checkmark$ Michael won the race by about $\square$ seconds.

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Problem 160

Question 8 of 11 (1 point) I Question Attempt: 1 of Unilmited
Kala trained three racehorses. She trained the first for 40 months, the second for 70 months, and the third for 90 months. The diagram below shows the number of races each horse won.
State whether the number of races won and number of months trained are proportional for the three horses. If they are proportional, fill in the blank with a whole number or a decimal. Proportional The number of races a horse won is $\square$ times the number of months the horse was trained. Not proportional

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Problem 161

11. (1 pts) A construction crew is digging a hole. The table below shows the proportional relationship between the depth of the hole and the amount of time spent digging. \begin{tabular}{|c|c|} \hline Hours & Depth in Feet \\ \hline $E C 2$ & -7 \\ \hline 4 & -14 \\ \hline $2 C 7$ & -24.5 \\ \hline $1 / 4$ & -15 \\ \hline \end{tabular}
Find the constant of proportionality. $y=14 x \quad(12)$
Find the amount of time it will take the crew to reach -15 feet. $y=14 x$

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Problem 162

A study was conducted that resulted in the following relative frequency histogram. Determine whether or not the histogram indicates that a normal distribution could be used as a model for the variable.
Choose the correct answer below. A. The histogram is not bell-shaped, so a normal distribution could be used as a model for the variable. B. The histogram is bell-shaped, so a normal distribution could not be used as a model for the variable. C. The histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable. D. The histogram is bell-shaped, so a normal distribution could be used as a model for the variable.

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Problem 163

pointed out the number of people who attended the fireworks show each year. \begin{tabular}{|c|c|} \hline 4) ${ }^{\text {(2/2 }}$ Year & - $)^{\text {(2) }}$ Attendance \\ \hline 2013 & 796 \\ \hline 2014 & 769 \\ \hline 2015 & 778 \\ \hline 2016 & 792 \\ \hline 2017 & 791 \\ \hline \end{tabular} [ix.] According to the table, what was the rate of change between 2014 and 2015? ( $x_{4}$ ] $\square$ people per year

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Problem 164

$\begin{array}{c} 7,7,3,7,2,7,7, \\ 7,3,6,3,0,0,6 \\ 4,1,2,4,5,1 \end{array}$ *Click the tally box to count up. The minus counts down. \begin{tabular}{|c|c|c|} \hline Interval & Tally & Frequency \\ \hline $0-1$ & & $\square$ \\ \hline $2-3$ & & $\square$ \\ \hline $4-5$ & & $\square$ \\ \hline $6-7$ & & $\square$ \\ \hline \end{tabular}

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Problem 165

How many times did the team score 2 goals?

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Problem 166

1 2 3 4 5 6 7 8 9 10
Maya is choosing between several pay plans for her new job. If she usually has monthly sales of about $\$ 5,000$ , whi plan would allow Maya to earn the most money in a month? \begin{tabular}{|c|c|c|} \hline Plan & Monthly base salary & Commission rate \\ \hline A & $\$ 500$ & $8 \%$ \\ \hline B & $\$ 600$ & $7 \%$ \\ \hline C & $\$ 700$ & $6 \%$ \\ \hline D & $\$ 800$ & $5 \%$ \\ \hline \hline \end{tabular} plan A plan B plan $C$ plan D

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Problem 167

14 15 16 17 18 19 20 \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Table A } \\ \hline Number of Days & Number of Pages \\ \hline 1 & 15 \\ \hline 2 & 30 \\ \hline 3 & 45 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Table B } \\ \hline Number of Days & Number of Pages \\ \hline 15 & 1 \\ \hline 30 & 2 \\ \hline 45 & 3 \\ \hline \hline \end{tabular}
Mark this and retue

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Problem 168

01:3
The ratio table below shows the relationship between the number of bricks in a wall and the length of the wall. \begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Brick Wall } \\ \hline \begin{tabular}{c} Number of \\ bricks \end{tabular} & Length ( ft ) \\ \hline 6 & 3 \\ \hline 8 & 4 \\ \hline 12 & 6 \\ \hline 18 & 9 \\ \hline \hline \end{tabular}
When the number of bricks is multiplied by 2 , the length is multiplied by 1. 2. 3. 6.

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Problem 169

One cup (250. mL) of coffee contains 125 mg of caffeine. One cup of tea has 0.100 g of caffeine. A can of Diet Coke ( 355 mL ) contains $50 . \mathrm{mg}$ of caffeine, and a can of Surge $(355 \mathrm{~mL})$ contains about 65 mg of caffeine. Caffeine is $\mathrm{C}_{8} \mathrm{H}_{10} \mathrm{~N}_{4} \mathrm{O}_{2}$ . a. Which drink has the most caffeine per milliliter? Show how you arrived at your conclusion. (3 points) b. Calculate the molarity of caffeine in the drink you chose in part a. (5 points)

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Problem 170

\begin{tabular}{|c|c|c|c|c|} \hline \multicolumn{5}{|c|}{ Characteristics of Homes For Sale on Katrina's Street } \\ \hline Bedrooms & \begin{tabular}{c} Acres of \\ land \end{tabular} & Sale price & \begin{tabular}{c} Appraised \\ value \end{tabular} & Property tax \\ \hline 2 & 0.17 & $\$ 230,000$ & $\$ 200,000$ & $\$ 1,220$ \\ \hline 2 & 0.20 & $\$ 210,000$ & $\$ 220,000$ & $\$ 1,232$ \\ \hline 3 & 0.20 & $\$ 275,000$ & $\$ 250,000$ & $\$ 1,400$ \\ \hline 4 & 0.24 & $\$ 275,000$ & $\$ 275,000$ & $\$ 1,540$ \\ \hline 4 & 0.52 & $\$ 360,000$ & $\$ 310,000$ & $\$ 1,736$ \\ \hline 4 & 0.75 & $\$ 350,000$ & $\$ 320,000$ & $\$ 1,792$ \\ \hline 5 & 1.23 & $\$ 375,000$ & $\$ 350,000$ & $\$ 1,960$ \\ \hline \end{tabular}
Which relationship describes a function? (bedrooms, sale price) (acres of land, appraised value) (sale price bedrooms)

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Problem 171

Which relation is a function of $x$ ?
\begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline-1 & 7 \\ \hline 2 & -9 \\ \hline 2 & 8 \\ \hline 3 & -4 \\ \hline \end{tabular}
\begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline-8 & -9 \\ \hline-8 & 2 \\ \hline 1 & -9 \\ \hline 1 & 2 \\ \hline \end{tabular}
\begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline-5 & 1 \\ \hline-5 & 7 \\ \hline-5 & -9 \\ \hline-5 & 2 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline-3 & -1 \\ \hline \end{tabular} Manktris and retum Save and Exit

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Problem 172

What is the slope of the line represented by the points in the table? \begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline-2 & -0.35 \\ \hline-1 & -0.3 \\ \hline 0 & -0.25 \\ \hline 1 & -0.2 \\ \hline 2 & -0.15 \\ \hline \end{tabular} $-0.05$ - 005 0.005 0.05

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Problem 173

The table below shows the number of color pages a printer prints out over a period of time. \begin{tabular}{|c|c|c|c|c|} \hline \multicolumn{5}{|c|}{ Printed Pages in Color } \\ \hline Time (min), $x$ & 2 & 6 & 8 & 18 \\ \hline Number of pages, $y$ & 3 & 9 & 12 & 27 \\ \hline \end{tabular}
What is the constant of variation? $\frac{2}{3}$ $\frac{3}{2}$ 2 3 Mark this and retum Save and Exit Next Subrit

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Problem 174

780 participants suffering from depression were randomly assigned to one of three groups. Over a four-month period, the first group received a low dosage of an experimental drug, the second group received a high dosage of the drug, and the third group received a placebo. At the end of the period each participant rated their mood on a scale of $1-5$ . Identify the treatments. The experimental drug, mood Placebo, low dosage, high dosage Mood level 1, mood level 2, mood level 3, mood level 4, mood level 5 The experimental drug

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Problem 175

Question 7 2 pts
Which sample would have the most bias if the survey is concerned with a car's performance? a very large sample a randomly chosen sample a very small sample a sample made up of people who drive BMWs

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Problem 176

3. Un grupo de estudiantes realizó un experimento con el propósito de investigar la relación entre la temperatura y la solubilidad de una sal en agua. De acuerdo con el diseño, consideraron 100 mL de agua en cada ensayo, diferentes cantidades de soluto, variando la temperatura de la mezcla. Los resultados obtenidos se muestran en la siguiente tabla: \begin{tabular}{|c|c|} \hline \begin{tabular}{c} Temperatura \\ $(\circ \mathrm{C})$ \end{tabular} & \begin{tabular}{c} Solubilidad \\ (g de sal/100 mL de agua) \end{tabular} \\ \hline 0 & 10 \\ \hline 20 & 15 \\ \hline 40 & 20 \\ \hline 60 & 25 \\ \hline 80 & 30 \\ \hline \end{tabular}
Con base en estos datos, es correcto concluir que: A) La solubilidad de la sal no cambia con el incremento de la temperatura B) Mientras más alta es la temperatura, mayor es la solubilidad de esa sal en agua C) Conforme se incrementa la temperatura, menos soluble en agua es la sal D) Existe una relación inversamente proporcional entre la temperatura del sistema y la solubilidad de la sal en agua E) ninguna es correcta

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Problem 177

Question 3.b
Would you use primary or secondary data to investigate each of the following situations? Explain. "You want to determine the make of the best-selling car last year."

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Problem 178

data below shows the average cost of a loaf of white bread. \begin{tabular}{|c|c|} \hline Year & \begin{tabular}{c} Average Cost for a \\ Loaf of White \\ Bread \end{tabular} \\ \hline 1980 & $\$ 0.50$ \\ \hline 1985 & $\$ 0.55$ \\ \hline 1990 & $\$ 0.69$ \\ \hline 1995 & $\$ 0.77$ \\ \hline 2000 & $\$ 0.91$ \\ \hline 005 & $\$ 1.00$ \\ \hline 007 & $\$ 1.15$ \\ \hline \end{tabular} a. Write the equation for line of best fit where $x$ represents yea since 1980 and $y$ represents the cost of bread. b. What is the coefficient of correlation? 0.9859 c. What does it tell us about the data? $\qquad$ d. Predict the cost of bread in 2012. $\qquad$

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Problem 179

The following table pertains to basketball players selected in the first round of the 1991 NBA draft. It lists the draft number of each player and the annual salary of the contract that the player signed. The missing entries are for players who signed with European teams. \begin{tabular}{|c|r|r|r|c|r|} \hline Pick \# & Salary & Pick \# & \multicolumn{1}{c|}{ Salary } & Pick \# & Salary \\ \hline 1 & $3,333,333$ & 10 & $1,010,652$ & 19 & 828,750 \\ \hline 2 & $2,900,000$ & 11 & 997,120 & 20 & 740,000 \\ \hline 3 & $2,857,100$ & 12 & $1,370,000$ & 21 & 775,000 \\ \hline 4 & $2,750,000$ & 13 & 817,000 & 22 & 180,000 \\ \hline 5 & $2,458,333$ & 14 & 675,000 & 23 & 550,000 \\ \hline 6 & $1,736,250$ & 15 & $950,000^{*}$ & 24 & 610,000 \\ \hline 7 & $1,590,000$ & 16 & $1,120,000$ & 25 & 750,000 \\ \hline 8 & $1,500,000$ & 17 & $1,120,000$ & 26 & 180,000 \\ \hline 9 & $1,400,000$ & 18 & 875,000 & 27 & 605,000 \\ \hline \end{tabular}
1. Describe the scatterplot (use Desmos). (3 points)
2. Use Desmos and list the following: the LSRL, the Correlation, and the Coefficient of Determination. (3 points)
3. Calculate the predicted salary for a player picked $12^{\text {th }}$ . Also calculate the residual for this value. Was your prediction an overestimate or an underestimate? (3 points)

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Problem 180

A college food court surveyed 407 students to see how many drink tea and how many drink soda. The Venn diagram below shows the results. (Each number gives the number of students who fall into that Venn diagram category.) (a) How many of the students do not drink soda? $\square$ students (b) How many of the students drink both tea and soda? $\square$ students (c) How many of the students drink tea or soda (or both)? $\square$ students

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Problem 181

```latex \text{Use the histogram below to answer the questions.}
\text{Annual Car Insurance Premiums for Students}
\begin{enumerate} \item How many students were surveyed? \text{There were 27 students who were surveyed.} \item What are the lower and upper class limits of the first and second classes? \text{First class: } \square - \square \text{Second class: } \square - \square \end{enumerate}
\text{The user took a picture with their phone and the text was extracted above. The user then had a dialogue with an AI Assistant to help clarify the instructions.}
\text{Dialogue Transcript:}
\text{It looks like you want to answer some questions about a histogram related to annual car insurance premiums for students. However, I'm missing the actual histogram and perhaps the data ranges it depicts. Could you please describe the histogram or provide the class limits shown in it? Once I have that information, I can help you with determining the class limits for the first and second classes.}
\text{Extracted text from attached image:}
\text{Use the histogram below to answer the questions.}
\text{Annual Car Insurance Premiums for Students} ```

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Problem 182

```latex \text{Use the accompanying frequency polygon to answer the following questions.} \begin{enumerate} \item How many people sent five e-mail messages? \item How many people sent six or fewer e-mail messages? \item How many people were included in the survey? \item Construct a frequency distribution from the frequency polygon. \item Construct a histogram from the frequency distribution in part (d). \end{enumerate}
\text{Number of E-mail Messages Sent per Day} \begin{enumerate} \item[a)] There were $\square$ people who sent five e-mail messages. (Type a whole number.) \end{enumerate}

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Problem 183

\begin{tabular}{|l|l|} \hline \begin{tabular}{l} Speed \\ (mph) \end{tabular} & \begin{tabular}{l} Mileage (miles per \\ gallon) \end{tabular} \\ \hline 15 & 22.3 \\ \hline 25 & 27.5 \\ \hline 35 & 28.8 \\ \hline 45 & 29.9 \\ \hline 55 & 30.4 \\ \hline 65 & 27.4 \\ \hline 75 & 23.3 \\ \hline \end{tabular}
Find the quadratic model of the data set provided. Round to the nearest thousandth. Model: $f(x)=$ type your answer... $\square$ $x^{2}+$ type your answer.. e type y

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Problem 184

For each table, determine whether it shows that $x$ and $y$ are proportional. If $\boldsymbol{X}$ and $\boldsymbol{y}$ are proportional, fill in the blank with a number in simplest form. \begin{tabular}{|c|c|c|c|c|c|c|c|} \hline & & le 1 & & & & l 2 & \\ \hline x & 20 & 24 & 10 & x & 5 & 6 & 10 \\ \hline y & 5 & 6 & 40 & y & 10 & 18 & 40 \\ \hline \multicolumn{4}{|l|}{OProportional} & \multicolumn{4}{|l|}{O Proportional} \\ \hline \multicolumn{4}{|l|}{ $y$ is $\square$ times $x$ } & \multicolumn{4}{|c|}{ $y$ is $\square$ times $x$ } \\ \hline \multicolumn{4}{|l|}{O Not proportional} & \multicolumn{4}{|l|}{O Not proportional} \\ \hline \end{tabular}

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Problem 185

Algéra 1 STAAR-Regression table math answers studenl.desmos.com/activilybuilder/instance/673667d22a5d28b1c537a639/student/67379c28163936e67015 Why did Islam Spre_ Copy of Patterns of Unblocked Games -... Unblocked Games - Vandalizing My Ow.. - Regression ARTINEZ \#5a
The table below shows the height of a ball $y$ (in feet) at different times $x$ (in seconds) after it was thrown into the air. Use the data in the table to answer the questions. \begin{tabular}{|c|c|} \hline Time & Height \\ \hline 0 & 4 \\ \hline 1 & 18 \\ \hline 2 & 24 \\ \hline 3 & 22 \\ \hline \end{tabular}
What model best fits this data
$y=-4 x^{2}+18 x+4$ $y=-3 x^{2}+12 x+4$ $y=-3 x^{2}+18 x+4$ $y=-4 x^{2}+12 x+4$

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Problem 186

\#5b
The table below shows the height of a ball $y$ (in feet) at different times $x$ (in seconds) after it was thrown into the air. Use the data in the table to answer the questions. \begin{tabular}{|c|c|} \hline Time & Height \\ \hline 0 & 4 \\ \hline 1 & 18 \\ \hline 2 & 24 \\ \hline 3 & 22 \\ \hline \end{tabular}
What is your best prediction of the ball height after 4 second? 18 feet 12 feet 15 feet

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Problem 187

gression \#8a
A company is tracking its daily profit $y$ based on the number of ads $x$ it runs online each day. The table below shows the data the company collected. Use this data to answer the questions. \begin{tabular}{|c|c|} \hline Number of Ads & Profit \\ \hline 1 & 20 \\ \hline 2 & 35 \\ \hline 3 & 45 \\ \hline 4 & 50 \\ \hline 5 & 45 \\ \hline 6 & 35 \\ \hline \end{tabular}
Based on the table, what is the best model to $r$ $26.3 x^{2}-3.3 x-3.5$ $-3.3 x^{2}+26.3 x-3.5$ $-2.3 x^{2}-20.3 x+2$ $-3.5 x^{2}+26.3 x+2.3$

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Problem 188

student.de chios.com/activitybuilder/instance/673667d22a5d28b1c537a639/student/67379c28163936e67015cc57\#screenId=9926e6e... Why did Islam Spr Copy of Patterns Of. Unblocked Games - Unblocked Games - Vandalizing My Ow.. New Tab gression
A company is tracking its daily profit $y$ based on the number of ads $x$ it runs online each day. The table below shows the data the company collected. Use this data to answer the questions. \begin{tabular}{|c|c|} \hline Number of Ads & Profit \\ \hline 1 & 20 \\ \hline 2 & 35 \\ \hline 3 & 45 \\ \hline 4 & 50 \\ \hline 5 & 45 \\ \hline 6 & 35 \\ \hline \end{tabular}
Based on the data what is the best prediction of what $t$ will be if 7 ads are posted online. 40 35 18.5 20.5

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Problem 189

TAAR - Regression Unblocked Games -... Unblocked Games -... Vandalizing My Ow... New Tab IAN MARTINEZ 11 of 1 \#6b
The table below shows the relationship between the number of books a student reads and their reading score. \begin{tabular}{|c|c|} \hline Books Read, $x$ & Reading Score, $y$ \\ \hline 4 & 80 \\ \hline 6 & 100 \\ \hline 8 & 120 \\ \hline 10 & 140 \\ \hline 12 & 160 \\ \hline \end{tabular}
Using the line of best fit from the table, what is the predicted reading score for a student who reads for $\mathbf{1 5}$ hours? $\square$

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Problem 190

Yesterday
This question has two parts. To determine the favorite sport of students in his school, Danny surveyed the football team. Danny's sample is $\qquad$ 3 because everyone in the population $\qquad$ an equal chance of being selected for the sample.
Complete the sentence by selecting the correct answers.
3. The best selection is - A. biased B. not biased
4. The best selection is - A. has B. does not have Released STAAR ${ }^{\text {® }}$

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Problem 191

4. A random sample of people was asked to report the age and distance driven of their first car. A line was fit to the data to model the relationship.
Write an equation of the line of best fit in $\mathbf{y}=\mathbf{m x + b}$ : Steps:
1. Identify $y$ -intercept (where the line crosses the y -axis) y -intercept, $\mathrm{b}=(\mathrm{O}$ , $\qquad$ )
2. Identify another point on the line (it has to be on the line)
2nd point ( $\qquad$ , $\qquad$ )
3. Find slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ between these two points $\mathrm{m}=$ $\qquad$ $=$
4. Substitute $m$ and $b$ values into $y=m x+b$ $y=$ $\qquad$

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Problem 192

For the year ending December 31, 2022, Cobb Company accumulates the following data for the Plastics Division, which it operates as an investment center: contribution margin $-\$ 700,000$ budget, $\$ 710,000$ actual; controllable fixed costs $-\$ 300,000$ budget, $\$ 302,000$ actual. Average operating assets for the year were $\$ 2,000,000$ .
Prepare a responsibility report for the Plastics Division beginning with contribution margin for the year ending December 31, 2022. (Round ROI to 1 decimal place, e.g. 1.5\%.)
COBB COMPANY Plastics Division Responsibility Report

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Problem 193

\begin{tabular}{|r|c|c|c|} \hline $x$ & $y$ & $1^{\text {st }}$ diff. & $2^{\text {nd }}$ diff. \\ \hline-3 & 37 & -20 & 6 \\ \hline-2 & 17 & $\square$ & 6 \\ \hline-1 & $\square$ & -8 & 6 \\ \hline 0 & -5 & -2 & 6 \\ \hline 1 & $\square$ & 4 & 6 \\ \hline 2 & -3 & $\square$ & \\ \hline 3 & $\square$ & & \\ \hline \end{tabular}

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Problem 194

03. (if fintals reverift in the following uble
Use these reviltiand;
1. Pine a tifntios curve pHif vernas V of NaOHI added.
2. Determine the volume or NaOH needed to reach the cod potet form the cune.
3. Calculate the concentration of acetic ash
4. What in the indicator that you wagecet for this titration
5. ICersify the color of your indicator before and after the cold polet.

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Problem 195

urrent Attempt in Progress Myers Company uses a flexible budget for manufacturing overhead based on direct labor hours. Budgeted variable manufacturing overhead costs per direct labor hour are as follows. \begin{tabular}{lr} Indirect labor & $\$ 1.00$ \\ Indirect materials & 0.70 \\ Utilities & 0.40 \end{tabular}
Budgeted fixed overhead costs per month are Supervision $\$ 4,000$ , Depreciation $\$ 1,200$ , and property Taxes $\$ 800$ . The company believes it will normally operate in a range of 7,000-10,000 direct labor hours per month.
Assume that in July 2022, Myers Company incurs the following manufacturing overhead costs. \begin{tabular}{lrllr} \multicolumn{2}{c}{ Variable Costs } & & \multicolumn{2}{c}{ Fixed Costs } \\ \cline { 1 - 2 } \cline { 4 - 5 } Indirect labor & $\$ 8,800$ & & Supervision & $\$ 4,000$ \\ Indirect materials & 5,800 & & Depreciation & 1,200 \\ Utilities & 3,200 & & Property taxes & 800 \end{tabular} (a) Prepare a flexible budget performance report, assuming that the company worked 9,000 direct labor hours during the month. (List variable costs before fixed costs.)

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Problem 196

```latex \text{Worldwide sales of computers have been increasing every year. The following bar graph and time-series plot both present a picture of the increase for the years 2005 - 2008. Which of the two graphs presents the more accurate picture? Why? (Give support for your choice.)} ```

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Problem 197

The value of a certain investment over time is given in the table below. Answer the questions below to determine what kind of function would best fit the data, linear or exponential. \begin{tabular}{|c|c|c|c|c|} \hline Number of Years Since Investment Made, x & 1 & 2 & 3 & 4 \\ \hline Value of Investment (\ $),$ \mathrm{f}(\mathrm{x}) & 27,171.30 & 22,507.26 & 18,718.31 & 15,412.40$ \\ \hline \end{tabular}
Answer Attempt 1 out of 5 $\square$ function would best fit the data because as $x$ increases, the $y$ values change $\square$ . The $\square$ of this function is approximately $\square$ Submit Answer

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Problem 198

Sheridan Compahy has delivery equipment that cost $\$ 54,100$ and has been depreciated $\$ 24,900$ . Prepare a tabular summary to record the disposal under the following assumptions. (a)
Your Answer Correct Answer (Used)
It was scrapped as having no value. - Decreases In assets, Mabinties, or stockholders' equity require a negative sign or parentheses. - Increases in expenses and losses require a negative sign or parentheses - Increases in Accumulated Depreciation require a negutive sian or parentheses - Decreases in Accumulated Depreciation are entered as postlve amounts. (b)
Your Answer Correct Answer
Your answer is correct.
It was sold for $\$ 36,800$
Decreases in assets, llabilities, or stoch olders' equity require a negative sign or parentheses. - Increases in expenses and losses require a negative sten or parentheses - Increases in Accumulated Depreciation require a negative sian or parentheses.
Decreases in Acoumakited Depreciation are entered as postive amounts Attempts: 3 of 3 used (c)
It was sold for $\$ 18.100$ - Decreases in assets, liablities, or stockholder' equity require a negotive sign or parentheses, - Increases in expenses and lasses require a negative sign or porentheses. - Increases in Accumulated Depreciation require a negative sizn or parentheses. -Decreases in Accurnulated Depreciation are entered as postive amounts.

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Problem 199

\begin{tabular}{|c|c|} \hline $x$ & $g(x)$ \\ \hline-1 & 4 \\ \hline 0 & 2 \\ \hline 1 & 0 \\ \hline 2 & -2 \\ \hline 3 & -4 \\ \hline \end{tabular}
Note: for $x$ and $y$ -intercepts, write only a number, not a point.
Answer Attempt 2 out of 2
The $x$ -intercept of $f(x)$ is 4 and the $x$ -intercept of $g(x)$ is $\square$ . Therefore $f(x)$ has a $\square$ $x$ -intercept than $g(x)$ .

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Problem 200

Fancthestore: \begin{tabular}{|c|c|} \hline $x$ & ri \\ \hline 5 & $\square$ \\ \hline $+$ & 4 \\ \hline 3 & - \\ \hline - & 2 \\ \hline \end{tabular}

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Clussity the scatter plats as having a positive, negative, or no correlation. 2. 3. 4. 5. 6.

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The Cougars basketball team sold tins of flavored popcorn as a fundraiser. The players competed for prizes to see who could sell the most tins. This box plot shows the results. VideoPopcorn tins soldWhat fraction of the players sold between 8 and 16 popcorn tins? □\square□ Submit

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1According to the chart below, what percentage of Ralph's expenses are items other than taxes?Ralph's Expenses aFederal Taxes -9ate Taxes - Housing ard Household aFood - MedcalCare - Transportation - Recreation -Clothing - aher a. 65%65 \%65% b. 71%71 \%71% c. 75%75 \%75% d. 94%94 \%94%

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Math ovember 15 at 11:59 PM Complete: 10\% raph Stories atterns in a Table Equation (Level 1) quation (Level 2) Representations)How long did it stop snowing for?

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Choose the best estimate for the correct correlation coefficient based on the scatter plot shown. r=−0.98r=-0.98r=−0.98 r=−0.87r=-0.87r=−0.87 r=0.81r=0.81r=0.81 r=1r=1r=1 r=0.09r=0.09r=0.09

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```latex \text{The graph represents changes in the house pricing index over 28 years. Rank the investment strategies from least to greatest profit.}

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B 100 149 8 Height (feet) 120 100 40 20 After 4.5 seconds, what was the object's height? O A. 80 feet ○ B. 90 feet ○ C. 110 feet O D. 120 feet Height of Object arter Launch 7 2 Time (seconds)

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I'm sorry, I can't assist with that request.

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Learn with an example or Watch a video What is the equation of the trend line in the scatter plot?

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3) The costs of different sizes of orange juice are shown in the table.Which container costs the least per ounce?

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Fill in the missing values to complete the table. \begin{tabular}{|c|c|} \hline Water (cups) & Lemonade mix (tbsp) \\ \hline 9 & 5 \\ \hline 63 & 35 \\ \hline 45 & 25 \\ \hline 18 & □\square□ \\ \hline & \\ \hline & 50 \\ \hline \end{tabular}

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How many times did the team score 2 goals?

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The Cougars basketball team sold tins of flavored popcorn as a fundraiser. The players competed for prizes to see who could sell the most tins. This box plot shows the results. Video
Popcorn tins sold
What fraction of the players sold between 8 and 16 popcorn tins? $\square$ Submit

1
According to the chart below, what percentage of Ralph's expenses are items other than taxes?
Ralph's Expenses aFederal Taxes -9ate Taxes - Housing ard Household aFood - MedcalCare - Transportation - Recreation -Clothing - aher a. $65 \%$ b. $71 \%$ c. $75 \%$ d. $94 \%$

Math ovember 15 at 11:59 PM Complete: 10\% raph Stories atterns in a Table Equation (Level 1) quation (Level 2) Representations)
How long did it stop snowing for?

Choose the best estimate for the correct correlation coefficient based on the scatter plot shown. $r=-0.98$ $r=-0.87$ $r=0.81$ $r=1$ $r=0.09$

3) The costs of different sizes of orange juice are shown in the table.
Which container costs the least per ounce?

Fill in the missing values to complete the table. \begin{tabular}{|c|c|} \hline Water (cups) & Lemonade mix (tbsp) \\ \hline 9 & 5 \\ \hline 63 & 35 \\ \hline 45 & 25 \\ \hline 18 & $\square$ \\ \hline & \\ \hline & 50 \\ \hline \end{tabular}

What is the slope of the line represented by the points in the table? \begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline-2 & -0.35 \\ \hline-1 & -0.3 \\ \hline 0 & -0.25 \\ \hline 1 & -0.2 \\ \hline 2 & -0.15 \\ \hline \end{tabular} $-0.05$ - 005 0.005 0.05