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Problem 11901

c) $2 \int(x+1) e^{x^{2}+2 x+3} d x$

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Problem 11902

Which set of numbers represents the input of the following funtrion? \begin{tabular}{|c|c|} \hline $\mathbf{x}$ & $\mathbf{y}$ \\ \hline-1 & -1 \\ \hline 0 & -1 \\ \hline 2 & 0 \\ \hline 3 & 2 \\ \hline \end{tabular} $(-1,-1,0,2)$ $(-1,0,2,3)$ $(-1,-1,0,-1)$ $(2,0,3,2)$

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Problem 11903

8. Describe the transformation from $y=\sqrt{x-5}+3$ to $y=\sqrt{x}+7$ .

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Problem 11904

Le tableau ci-dessous résume les chiffres d'affaires annuels (C.A.) en milliers d'euros, d'une micro-entreprise entre 2016 et 2020.
Complète les valeurs manquantes. \begin{tabular}{|c|c|c|c|c|c|} \hline & 2016 & 2017 & 2018 & 2019 & 2020 \\ \hline C.A. & 91 & 103 & $\ldots .$ . & 101 & $\ldots$ . \\ \hline Évolution en \% & & $?$ & +14 & $\ldots .$ . & -2 \\ \hline \end{tabular}

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Problem 11905

$\begin{array}{l}\{(2,2),(4,4),(6,6),(8,8)\} \\ \{(0,3),(3,5),(5,6),(8,4)\} \\ \{(1,2),(3,3),(4,8),(6,3)\} \\ \{(3,4),(5,2),(5,6),(7,3)\}\end{array}$

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Problem 11906

Consider the following demographic data for a hypothetical state Assume everyone votes along party lines The state has 16 representatives and a population of 69 milion, party affiliations are 90\% Democrat and 10\% Republican. Complete parts (a) and (b) below. a. If distncts were drawn randomly, what would be the most likely distribution of House seats? $\square$ Republicans, $\square$ Democrats

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Problem 11907

$\left\{\begin{array}{l}x+y-z=2 \\ 2 x+4 y+z=-3 \\ 3 x+3 y-2 z=5\end{array}\right.$

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Problem 11908

Women stereotypically talk more than men do and researchers wondered how much more. Suppose a study attempted to determine the difference in the mean number of words spoken by men or women per day. The results of the study are summarized in the table. \begin{tabular}{cccccc} Group & \begin{tabular}{c} Population \\ mean \end{tabular} & \begin{tabular}{c} Sample \\ size \end{tabular} & \begin{tabular}{c} Sample \\ mean \end{tabular} & \begin{tabular}{c} Sample standard \\ deviation \end{tabular} & \begin{tabular}{c} Standard error \\ estimate \end{tabular} \\ \hline women & $\mu_{\mathrm{w}}$ (unknown) & $n_{\mathrm{w}}=27$ & $\bar{x}_{\mathrm{w}}=16496$ & $s_{\mathrm{w}}=7914$ & $\mathrm{SE}_{\mathrm{w}}=1523$ \\ men & $\mu_{\mathrm{m}}$ (unknown) & $n_{\mathrm{m}}=20$ & $\bar{x}_{\mathrm{m}}=12867$ & $s_{\mathrm{m}}=8230$ & $\mathrm{SE}_{\mathrm{m}}=1840$ \end{tabular} $\mathrm{df}=40.1700$
Assume the conditions are satisfied for a two-sample $t$ -confidence interval. First, determine the positive critical value, $t$ , for a $99 \%$ confidence interval to estimate how many more words women speak each day on average compared to men, $\mu_{\mathrm{w}}-\mu_{\mathrm{m}}$ .
Give your answer precise to at least three decimal places. $t=2.861$

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Problem 11909

3. The substitution $u=y^{-1}$ transforms the $D E \frac{d y}{d x}+\frac{y}{x}=y^{2}$ a. $\frac{d u}{d x}=y$ b. $\frac{d u}{d x}=y^{2}$ c. $\frac{d u}{d x}=y^{-2}$ d. $\frac{d u}{d x}=y^{-1}$

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Problem 11910

3. At a seaport, the depth of the water, d , in meters, at time $t$ hours, during a certain day is given by: $\mathrm{d}=3.4 \sin \left(2 \pi \frac{(\mathrm{t}-7.00)}{10.6}\right)+2.8$ [4 marks] a) What is the depth of the water at $6: 30 \mathrm{pm}$ ? (Answer to the nearest hundredths). b) How long will the depth be above 4 metres during one full day of 24 hours?

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Problem 11911

(b) $(0,1)$ and $(2,2)$
The slope is $\square$ .

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Problem 11912

$\begin{array}{c} 21 x-6 y=54 \\ 9+y=3.5 x \end{array}$
4. The system of equations shown has how many solutions?

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Problem 11913

Consider the molecule: $\mathrm{Sl}_{2}$ In the blanks below, answer the following questions, in order:
1. Calculate the electronegativity difference between the central atom and the second atom. Give the answer to 1 decimal place.
2. Determine if the bond is covalent, polar covalent, or ionic. (these are your 3 choices)
3. Determine the shape of the molecule. (angular, linear, trigonal planar, trigonal pyramidal, tetrahedral)
4. Determine if the shape is symmetrical or asymmetrical
5. Determine if the molecule polar, or nonpolar
6. Indicate the dominant intermolecular force (London dispersion, dipole-dipole, hydrogen bonding)

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Problem 11914

Determine if the representation below is an example of positive correlation, * 1 point negative correlation, or has no association.
A The number of ice cubes in a drink and the temperature of the drink. Positive Negative No Association

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Problem 11915

Look at the following inequalities. $\begin{array}{l} 1,000,000>\frac{7}{23}, 0<\frac{7}{23}, 22>\frac{7}{23} \\ -1,000<\frac{7}{23},-\frac{18}{19}<\frac{7}{23}, \frac{7}{23}>0.2 \\ \frac{7}{23}<\frac{1}{2}, \frac{7}{23}<4 \frac{1}{6} \end{array}$ a. Which of the numbers above are the right of $\frac{7}{23}$ on a number line $\qquad$ b. Which of the numbers above are the left of $\frac{7}{23}$ on a number line?

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Problem 11916

jelect all ratios equivalent to $5: 4$ . $11: 2$ $60: 48$ 3:6

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Problem 11917

Determine If the represemtation below is an example of positive correlation, 1 point negathe correlation, or has no assoclation.
C Positive Negative No Association
Justify your answer below. *
Your answer

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Problem 11918

Reason Abstractly During a test flight, Jeri's rocket reached a height of 18 yards above the ground. This was 7 yards less than the height that Devon's rocket reached. Did Devon's rocket reach a height greater than 23 yards? Explain. Choose the best answer and explanation. A) no; If I solve the equation $x-7=18$ to find the height that Devon's rocket reached, I find that Devon's rocket reached a height of $18-7$ , or 11 yards. Because $11<23$ , Devon's rocket did not reach a height greater than 23 yards. B) no; If I solve the equation $x+7=18$ to find the height that Devon's rocket reached, I find that Devon's rocket reached a height of $18-7$ , or 11 yards. Because $11<23$ , Devon's rocket did reach a height greater than 23 yards. C) yes; If I solve the equation $x-7=18$ to find the height that Devon's rocket reached, I find that Devon's rocket reached a height of $18+7$ , or 25 yards. Since $25>23$ , Devon's rocket did reach a height greater than 23 yards. D) yes; If I solve the equation $x+7=18$ to find the height that Devon's rocket reached, Ifind that Devon's rocket reached a height of $18+7$ , or 25 yards. Because $25>23$ , Devon's rocket did reach a height greater than 23 yards.

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Problem 11919

1. Adding and Subtracting Rational Numbers A. Sketch a Venn diagrant to show all of the sets and subsets of numbers that you know. Use your Venn diagram to decide whether each statement is true or false. Explain your reasoning,
1. All integers are included in the set of natural numbers. False. 0 is an inierger but is not inciuded in the ser of naturaul numbers
2. All whole numbers are included in the set of integers. True. whole number s include 0
3. All rational numbers are included in the
4. $\frac{2}{9}$ is included in the set of integers. set of whole numbers.
5. -3 is included in the set of
6. $\frac{3}{5}$ is included in the set of rational numbers. rational numbers. True. 3 is a number form being eaval to "o" which is the clefenition of rationall F

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Problem 11920

For each inequality, choose the statement that describes its solution. If applicable, give the solution. (a) $3(4-u)+3 u>16$ No solution u रे $\square$ $u>$ $\square$ All real numbers are solutions (b) $3(5 v+2) \leq 13 v+16$ No solution $v \leq$ $\square$ $v \geq$ $\square$ All real numbers are solutions

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Problem 11921

Mara Stratton 12/03/24 6:28 PM Question 6, 10.3.21-T HW Score: $47.62 \%, 20$ of 42 points lomework Part 4 of 5 Points: 0 of 2 Save
The mean waiting time at the drive-through of a fast-food restaurant from the time an order is placed to the time the order is received is 86.8 seconds. A manager devises a new drive-through system that he believes will decrease wait time. As a test, he initiates the new system at his restaurant and measures the wait time for 10 randomly selected orders. The wait times are provided in the table to the right. Complete parts (a) and (b) below. \begin{tabular}{|c|c|} \hline 105.8 & 82.9 \\ 66.1 & 96.3 \\ 59.6 & 85.3 \\ 76.2 & 72.3 \\ 65.2 & 80.3 \\ \hline \end{tabular}
Click the icon to view the table of correlation coefficient critical values. (b) Is the new system effective? Conduct a hypothesis test using the P -value approach and a level of significance of $\alpha=0.01$ .
First determine the appropriate hypotheses. $\begin{array}{l} H_{0}: \mu=86.8 \\ H_{1}: \mu=86.8 \end{array}$
Find the test statistic. $t_{0}=-1.73$ (Round to two decimal places as needed.) Find the P -value. The $P$ -value is $\square$ . (Round to three decimal places as needed.)
Time (sec) 3 xample Get more help - Clear all Final check

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Problem 11922

Determine if the representation below is an example of positive correlation, * 1 polit negative correlation, or has no association.
H The number of colors used in a painting and the cost of the painting. Positive Negative No Association
Justify your answer below. *
Your answer

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Problem 11923

1. Without graphing them, tell if the following two lines are parallel, perpendicular, or neither. $\begin{array}{l} 3 y+2 x=12 \\ 5-3 y=2 x \end{array}$

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Problem 11924

Question 4 (1 point) The function $y=-3 \sin x+1$ has an amplitude of -3 . True False
Question 5 (1 point) The graph of the function $y=\sin \pi x$ has a period of 2 . True False
Question 6 (1 point) The trigonometric equation $\cos ^{2} x-\sin ^{2} x=0$ has the same solutions as the trigonometric equation $\cos 2 x=0$ . True False

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Problem 11925

Part 1 of 3 (a) Find the run, rise, and slope given by triangle $A B C$ . run: $\square$ rise: $\square$ slope: $\square$

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Problem 11926

$45,12$
Factors of 45 Factors of 12 $\qquad$ $\qquad$ —, $\qquad$ , $\qquad$ $\qquad$ $\qquad$ $\qquad$ , $\qquad$

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Problem 11927

Spiral Review A triangle has angles measuring $45^{\circ}, 55^{\circ}$ , and $80^{\circ}$ . It is dilated by a scale factor of 2 . What are the angle measures, in order from least to greatest, of the dilated image? Enter the correct answers in the boxes.
Show Hints $\square$ $\square$ , and $\square$ $]^{\circ}$ $\square$

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Problem 11928

Part 5 of 6 Points: 0 of 1
A simple random sample of size $n$ is drawn. The sample mean, $\bar{x}$ , is found to be 17.9 , and the sample standard deviation, $s$ , is found to be 4.2 . (a) Construct a $95 \%$ confidence interval about $\mu$ if the sample size, n , is 34 .
Lower bound: 16.43 ; Upper bound: 19.37 (Use ascending order. Round to two decimal places as needed.) (b) Construct a $95 \%$ confidence interval about $\mu$ if the sample size, n , is 61.
Lower bound: 16.83 ; Upper bound: 18.98 (Use ascending order. Round to two decimal places as needed.) How does increasing the sample size affect the margin of error, E? A. The margin of error increases. B. The margin of error decreases. C. The margin of error does not change. (c) Construct a 99\% confidence interval about $\mu$ if the sample size, n , is 34 .
Lower bound: 15.93; Upper bound: 19.87 (Use ascending order. Round to two decimal places as needed.) Compare the results to those obtained in part (a). How does increasing the level of confidence affect the size of the margin of error, E? A. The margin of error decreases. B. The margin of error does not change. C. The marnin of error increases

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Problem 11929

Write the complex number in rectangular form. $\begin{array}{l} 12\left(\cos 150^{\circ}+i \sin 150^{\circ}\right) \\ 12\left(\cos 150^{\circ}+i \sin 150^{\circ}\right)= \end{array}$ $\square$ (Type your answer in the form a + bi. Type an exact answer, using radicals as needed.)

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Problem 11930

Answer the statistical measures and create a box and whiskers plot for the following set of data. $5,6,7,9,10,11,12,12,14,15,16,17,18,19$
Min: $\square$ Q1: $\square$ Med: $\square$ Q3: $\square$ Max: $\square$
Create the box plot by dragging the lines:

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Problem 11931

2) 18,21
Factors of 18 Factors of 21 $\qquad$ $\qquad$ $\qquad$ $\qquad$ - $\qquad$ $\qquad$ $\qquad$ , $\qquad$ 3) 14,39
Factors of 14 $\qquad$ , $\qquad$ , $\qquad$ Factors of 39 $\qquad$ $\qquad$ $\qquad$ $\qquad$ 4) 15,18
Factors of 15 $\qquad$ , $\qquad$ , $\qquad$ Factors of 18 $\qquad$ $\qquad$ $\qquad$ $\qquad$ 5) 3,12
Factors of 3 $\qquad$ , $\qquad$ Factors of 12 $\qquad$ '—, $\qquad$ ,

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Problem 11932

Section 9.2 Homework Question 9, 9.2.28 HW Score: 47.14\%, 15.56 of 33 points Part 3 of 4 Points: 0 of 1 Save
A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 951 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.32 hours with a standard deviation of 0.52 hour. Complete parts (a) through (d) below.
Click the icon to view the table of critical t-values. that both tails are accounted for in the confidence interval. D. Since the distribution of time spent eating and drinking each day is highly skewed right, a large sample size is needed to minimize the margin of error to ensure only the peak of the sampling distribution is captured in the confidence interval. (b) There are more than 200 million people nationally age 15 or older. Explain why this, along with the fact that the data were obtained using a random sample, satisfies the requirements for constructing a confidence interval. A. The sample size is greater than $10 \%$ of the population. B. The sample size is greater than $5 \%$ of the population. C. The sample size is less than $5 \%$ of the population. D. The sample size is less than $10 \%$ of the population. (c) Determine and interpret a 95\% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day.
Select the correct choice below and fill in the answer boxes, if applicable, in your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) A. The nutritionist is $95 \%$ confident that the amount of time spent eating or drinking per day for any individual is between $\square$ and B. The nutritionist is $95 \%$ confident that the mean amount of time spent eating or drinking per day is between $\square$ and $\square$ hours. C. There is a $95 \%$ probability that the mean amount of time spent eating or drinking per day is between $\square$ and $\square$ hours.

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Problem 11933

Name $\qquad$ Practice Period $\qquad$ Date $\qquad$ Go Online You can complete your homework online
1. Gennaro is considering two job offers as a part-time sales person. Company A will pay him $\$ 12.50$ for each item he sells, plus a base salary of $\$ 500$ at the end of the month. The amount Company B will pay him at the end of the month is shown in the table. Compare the functions' initial values and rates of change. Then determine how much more Gennaro would make at Company $A$ if he sells \begin{tabular}{c|c|c} \hline \begin{tabular}{c} Number of \\ Items Sold, $x$ \end{tabular} & \begin{tabular}{c} Total \\ Earned (\ $),$ y \end{tabular} \\ \hlineS$ & 5 & 425 \\ \hline 10 & 500 \\ \hline 15 & 575 \\ \hline \end{tabular}
28 items by the end of the month. (Example 1)

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Problem 11934

Question 1 (1 point) A population, $p$ , of bears varies according to $p(t)=250+30 \cos t$ , where $t$ is the time, in years. During which of the following intervals is the population decreasing? a) $\frac{3 \pi}{2}<t<2 \pi$ b) $0<t<\pi$ C) $0<t<\frac{\pi}{2}$ d) $\pi<t<2 \pi$

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Problem 11935

\begin{tabular}{|c||c|c|} \hline $x$ & 0 & 1 \\ \hline $f(x)$ & 1 & 2 \\ \hline \end{tabular}
Let $f$ be the function given by $f(x)=2^{x^{3}}$ . Selected values of $f$ are given in the table above. If the values in the table are used to approximate $f^{\prime}(0.5)$ , what is the difference between the approximation and the actual value of $f^{\prime}(0.5)$ ? (A) 0
B 0.433 (C) 0.567 (D) 1

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Problem 11936

'As part of quality control, an engineer weighs a certain number of boxes of oatmeal that are supposed to weigh 16 ounces. The results are given in the frequency distribution below: \begin{tabular}{|l|l|} \hline $\mathrm{x}=$ Weight of box (in ounces) & Number of Boxes \\ \hline $15.3 \leq x<15.6$ & 7 \\ \hline $15.6 \leq x<15.9$ & 13 \\ \hline $15.9 \leq x<16.2$ & 18 \\ \hline $16.2 \leq x<16.5$ & 17 \\ \hline $16.5 \leq x<16.8$ & 10 \\ \hline \end{tabular}
What is the relative frequency of boxes that are less than 16.2 ounces? Give your answer as a decimal rounded to the nearest hundredth. $\square$

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Problem 11937

C10 Q10 V3: The Excel file STATISTICSSTUDENTSSURVEYFORR contains the column ENDPULSEMIN (a numerical variable that measures student pulses after completing an online survey) and the column BEFPULSEMIN (a numerical variable that measures student pulses before completing an online survey). For education purposes, consider this dataset to be a sample of size 60 taken from a much larger population for statistics students. Consider the paired differences $d=$ ENDPULSEMIN BEFPULSEMIN. Calculate a $90 \%$ confidence interval for the mean of the population paired differences. Choose the most correct (closest) answer. a. Your confidence interval is $(0.4746613,1.5253387)$ and there is significant evidence that, on average, the two pulse rate measurements give different results. b. Your confidence interval is ( $0.5612735,1.4387265$ ) and there is no significant evidence that, on average, the two pulse rate measurements give different results, on average. c. Your confidence interval is ( $0.4746613,1.5253387$ ) and there is no significant evidence that, on average, the two pulse rate measurements give different results. d. Your confidence interval is $(0.5612735,1.4387265)$ and there is significant evidence that, on average, the two pulse rate measurements give different results.

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Problem 11938

as speed decreases as tijme goes onwhat happens to kinetic energy - Google... 7 Mark for Review
The graph shows speed $v$ as a function of time $t$ for a 0.20 kg object traveling along a straight, horizonta track. The change in the kinetic energy of the object over the time interval shown in the graph is most nearly

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Problem 11939

Order these numbers from least to greatest. $\frac{187}{24}, \sqrt{49}, 7 . \overline{7},-7 \frac{15}{17}$
Note that for this question you can use your mouse to drag the $\frac{187}{24}$ $\sqrt{49}$ $7 . \overline{7}$ $-7 \frac{15}{17}$ $I$

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Problem 11940

The function $f$ is given by $f(x)=1+3 \cos x$ . What is the average rate of change of $f$ over the interval $[0, \pi]$ ?
A $-\frac{6}{\pi}$ (B) $-\frac{2}{\pi}$ (C) $\frac{2}{\pi}$ (D) 1

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Problem 11941

C13 Q2 V3 The Excel file STATISTICSSTUDENTSSURVEYFORR contains the column MOTHDEGREE (a categorical variable that indicates the degree obtained (or being obtained) by a student's mother (GraduateProfessional, HighSchool, Undergraduate) and the column BAORBS (a categorical variable that indicates whether a student is pursuing a BA or a BS. We consider, somewhat artificially, the statistics 151 student data in the STATISTICSSTUDENTSSURVEYFORR file to be a random sample from a much larger hypothetical population of Canadian students. Using a level of significance of $5 \%$ , you perform a test of independence to determine if mother's final degree and student bachelorá s degree are independent. Choose the most correct (closest) answer below. a. A Chi-square test of independence requires numerical variables and you cannot do this problem. b. Your pvalue is 0.449 , and you reject your null hypothesis. c. Your pvalue is 0.2245 , and you fail to reject your null hypothesis. d. Your pvalue is 0.449 , and you fail to reject your null hypothesis.

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Problem 11942

Which of these figures would have the lowest melting point?
A
B C

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Problem 11943

Determine the domain on which the following function is decreasing.

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Problem 11944

Exercice 7: Sur quelle(s) figure(s) a-t-on colorié $\frac{1}{4}$ de la surface ? (1) (2) (3)
Exercice 8: Dans chacun des cas suivants, quelle fraction de la surface a été coloriée? (1) (2) (3)

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Problem 11945

Determine the domain on which the following function is decreasing.

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Problem 11946

9.2 Homework Question 10, 9.2.52 HW Score: $58.83 \%, 19.41$ or 35 poinis Part 1 of 3 Points: 0 of 1 Save
The accompanying data represent the total travel tax (in dollars) for a 3-day business trip in 8 randomly selected cities. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts (a) through (c) below. $\begin{array}{llllllll} 68.19 & 78.61 & 69.91 & 83.64 & 80.92 & 87.43 & 100.02 & 97.42 \end{array}$
Click the icon to view the table of critical t-values. (a) Determine a point estimate for the population mean travel tax.
A point estimate for the population mean travel tax is $\$$ $\square$ (Round to two decimal places as needed.)

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Problem 11947

2) $\begin{array}{l} y=\frac{3}{2} x-3 \\ y=-2+2 x \end{array}$

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Problem 11948

The weights for newborn babies is approximately normally distributed with a mean of 6.7 pounds and a standard deviation of 2 pounds.
Use the Cumulative Z-Score Table to answer the questions below. Write your answers rounded to the nearest whole number.
Consider a group of 1000 newborn babies: - How many would you expect to weigh between 2.9 and 6.4 pounds? $\square$ - How many would you expect to weigh less than 3.9 pounds? $\square$ Enter an integer or decimal number more.I - How many would you expect to weigh more than 6.5 pounds? $\square$ - How many would you expect to weigh between 6.7 and 8.3 pounds? $\square$

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Problem 11949

Mark for Review
The graph shows the position as a function of time for an object of mass 5 kg moving in one dimensio The kinetic energy of the object at 5 s is most nearly

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Problem 11950

$\begin{array}{l} y \leq -x - 4 \\ y > 3x - 8 \end{array}$

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Problem 11951

37° 35° το 103°

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Problem 11952

$23 < 2y - 9 < 26$

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Problem 11953

Which of the following is the set of all real numbers $x$ such that $x+2>x+5$ ? A. The set containing only zero B. The set containing all nonnegative real numbers C. The set containing all negative real numbers D. The set containing all real numbers E. The empty set

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Problem 11954

Question 49 (1 point) Matthew is trying to figure out which value for $x$ is NOT a solution for $\tan x=0$ . Do you have an answer? Choose one. a) $-3 \pi$ b) 0 c) $2 \pi$ d) $\frac{\pi}{2}$

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Problem 11955

Using the following number line, which of the following statements must be true? A. $|x-y|<1$ B. $|x-y|=1$ C. $|x-y|>1$ D. $|x-y|<\frac{1}{2}$ E. $|x-y|=\frac{1}{2}$

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Problem 11956

Determine whether the integral is divergent or convergent. If it is convergent, evaluate it. If not, state your answer as "divergent". $\int_{6}^{\infty} \frac{7}{(x+5)^{3 / 2}} d x=$

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Problem 11957

e figure below represents a solution set for which of the following inequalities? $\begin{array}{l} -2 x+12<x-2 \\ 4 x-2 \geq 2 x-3 \\ 5 x+5 \geq x \\ 3 x-1 \leq 5 x+3 \\ 6 x-3>3 x+2 \end{array}$

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Problem 11958

he figure below represents a solution set for which of the following inequalities? A. $-2 x+12<x-2$
3. $4 x-2 \geq 2 x-3$ C. $5 x+5 \geq x$ D. $3 x-1 \leq 5 x+3$ E. $6 x-3>3 x+2$

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Problem 11959

9. A supermarket conducts a survey to find the approximate number of its customers who like apple juice. What is the population of the survey?

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Problem 11960

Find the range of possible values for $x$ . $\qquad$
The range is $\square$ $<x<$ $\square$ (Simplify your answers.)

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Problem 11961

Find the best predicted value of $y$ given that $x=5$ for 6 pairs of data that yield $r=0.444, \bar{y}=18.3$ and the regression equation $y=2+5 x$ . State the critical level.

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Problem 11962

The least squares method minimizes which of the following? All of the above SST SSE SSR

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Problem 11963

Figure it thomure 6
In Figure 1, a person uses a pulley to lift a bell. The person pulls down on the rope at a constant speed. Power $P_{1}$ is delvered to the bell and it moves upward at a constant speed. In Figure 2, the person uses a double pulley. The person pulls down on the rope at the same constant speed. The bell again moves upward at a constant speed, but the speed of the bell is half the speed of the bell in Figure 1 . The power delivered to the bell in Figure 2 is $P_{2}$ . Which of the following correctly compares $P_{2}$ to $P_{1}$ and provides a valid justification? (A) $P_{2}<P_{1}$ , because in Figure 2 the force exerted on the bell is the same but it is moving with less speed than in Figure 1. (B) $P_{2}<P_{1}$ , because in Figure 2 the force exerted on the bell is less than in Figure 1. (C) $P_{2}=P_{1}$ , because in Figure 2 the speed is half that in Figure 1 , but the force on the bell is twice that in Figure 1. (D) $P_{2}=P_{1}$ , because in Figure 2 the person is doing the same amount of work on the bell as in Figure 1.

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Problem 11964

Question 3 (1 point) An equivalent trigonometric expression for $\tan (-x)$ is a) $\tan x$ b) $-\cot x$ c) $\cot x$ d) $-\tan x$

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Problem 11965

To use your knowledge of $x$ - and $y$ -intercepts to choose the correct graph of the equation, find the intercepts of the equation: $4x + 6y = 12$

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Problem 11966

Which of the equations is NOT equivalent to $6 x=20$ ? Select all that apply. (A) $6 x \div 6=20 \div 6$ (D) $6 x-1=20-1$ (B) $6 x \div 6=20 \div 20$ (E) $6 x \times 6=20 \times 20$ (C) $6 x+5=20+5$

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Problem 11967

The following steps are used to rewrite the polynomial expression $(x+4 y+z)(x-7 y)$ . Step 1: $x(x-7 y)+4 y(x-7 y)+z(x-7 y)$
Step 2: $x^{2}-7 x y+4 y x-28 y^{2}+z x-7 z y$
Step 3: $x^{2}-7 x y+4 x y-28 y^{2}+x z-7 y z$
Step 4: $x^{2}-3 x y-28 y^{2}+x z-7 y z$
Identify the property used in each of the steps:
Step 1:
Step 2:
Step 3:

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Problem 11968

Put these numbers in order from least to greatest. 1.94 $\frac{5}{8}$ 0.33
Submit

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Problem 11969

Neronica lives on a straight road that goes east and west She starts from a point 5 . miles west of her home and drives a certain distance to the store. The store is more than $3 \frac{1}{2}$ miles east of her home.
Let d represent the distance Veronica drove. Which inequality represents this situation? $-5.1+d \geq-3 \frac{1}{2}$ $-5.1+d \geq 3 \frac{1}{2}$ $-5.1+d>3 \frac{1}{2}$ $-5.1+d>-3 \frac{1}{2}$

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Problem 11970

What is the exact value of $\tan \left(-\frac{\pi}{12}\right)$ ? $-2+\sqrt{3}$ $-\frac{\sqrt{3}}{3}$
$\frac{\tan \frac{7 \pi}{12}}{1-\sqrt{3}}$ $1-\sqrt{3}$

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Problem 11971

a. Rewrite "All playing cards are black." b. What is the negation: "Some playing cards are not black"?

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Problem 11972

Which equations equal $4(2+1 c)$ ? Choose all: (A) $6+4 c$ , (B) $6+5 c$ , (C) $8 \times 4 c$ , (D) $8+4 c$ , (C) $(4 \times 2)+(4 \times 1 c)$ , (๑) $(4 \times 2) \times(4 \times 1 c)$ .

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Problem 11973

Fill in the blank to make $w^{2}-12w+$ a perfect square.

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Problem 11974

How much larger is Lake Huron's area than Lake Erie? Use $22,973 - 9,906$ to find the difference.

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Problem 11975

Find the mean speed from the frequency distribution: 42-45 (26), 46-49 (14), 50-53 (7), 54-57 (4), 58-61 (1).

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Problem 11976

Find the discriminant and number of real solutions for the equation $-3 x^{2}+6 x-1=0$ .

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Problem 11977

Calculate $n, \Sigma X$ , and M from the exercise sessions data. Then, discard patients with >5 sessions and recalculate.

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Problem 11978

Graph the parabola $y=\frac{5}{4} x^{2}$ and plot five points: vertex, two left, two right.

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Problem 11979

Write 2,368 in expanded and word form: $2,000 + 300 + 60 + 8$ and "two thousand three hundred sixty-eight."

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Problem 11980

Create a box-and-whisker plot for the ages of 16 history teachers: 30, 59, 56, 28, 24, 45, 52, 32, 23, 35, 45, 34, 33, 36, 31, 29.

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Problem 11981

Find the money multiplier for a reserve rate of $r = 0.12$ . Options: A. $\frac{1}{0.12}$ B. $10 \cdot 0.12$ C. $\frac{1}{0.12^{2}}$ D. $0.12^{2}$

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Problem 11982

Find the mean, median, and mode of this data from 8 guava trees: 80, 70, 80, 90, 80, 82, 90, 92.

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Problem 11983

Write 2,368 in expanded form as $2000 + 300 + 60 + 8$ and in word form as "two thousand three hundred sixty-eight."

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Problem 11984

Find the complement of set $A=\{0, q, s, t\}$ in universe $U=\{0, p, q, r, s, t, u\}$ using roster method. $A^{\prime}=\{\square$

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Problem 11985

Calculate the sample variance and standard deviation for the dataset: 10, 5, 8, 9, 4, 11. Round to one decimal place.

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Problem 11986

Find the set $A \cup \varnothing$ where $A=\{6,7,8,9\}$ . Choose the correct option: A. $A \cup \varnothing=\{\}$ B. $A \cup \varnothing$ is the empty set.

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Problem 11987

Meghan's family has 8 glasses wearers. If the mean is 2 and SD is 1, how many standard deviations is she from the mean?

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Problem 11988

Find the total area and half the area of a histogram with $n=5$ scores and 5 shaded boxes out of 25.

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Problem 11989

Who is the better salesman: Kerry or John? Compare their standard deviations: Kerry's is 1.1, John's is 1.9.

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Problem 11990

Graph the solution to the inequality $(x-4)(x+7)>0$ on a number line.

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Problem 11991

In a county of 5000, the Butler family is at the $18^{\text{th}}$ percentile and the Turner family at the $84^{\text{th}}$ . What can be inferred about their incomes?

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Problem 11992

Write verbal expressions for the following: 4) $9 \cdot w$ 5) $2 \gamma - 5$ 6) $7 + 3 x$

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Problem 11993

Analyze the function $g(x)=3 x^{2}-6 x+7$ . Does it have a min or max? What is the value and where does it occur? $x=$

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Problem 11994

Evaluate $(g \circ f)(2)$ , $(f \circ g)(4)$ , and $(g \circ g)(6)$ using given tables. Select the correct answers.

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Problem 11995

Find the average rate of change of the function $f(x)=2x^{2}+4$ over the interval $[-5,1]$ . Include units if needed.

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Problem 11996

CPI decreased by $5\%$ in the first four years and $10\%$ in the next. What condition existed in the second period? A. Deflation B. Inflation C. Conflation D. Stagnation

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Problem 11997

Find the average rate of change of $f(x)=3 x^{2}-\frac{x}{2}$ over the interval $[5,10]$ . Specify units if needed.

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Problem 11998

What is Mark's height if the boys are 152.0 cm, 150.75 cm, 149.5 cm, and 149.25 cm, with Josh being the shortest?

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Problem 11999

Un observateur sous-marin voit à travers un masque.
1) Quelle relation existe entre $r$ , $j$ et $\alpha$ ?
2) Le rayon peut-il se réfléchir en $J$ ?
3) Conditions sur $j$ et $\alpha$ pour que le rayon sorte en $M$ . Si $\alpha=20^{\circ}$ et $i=45^{\circ}$ , à quelle valeur de $\alpha$ disparaît-il ?

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Problem 12000

21 participants chose images in a study. Complete the frequency distribution and find how many chose indecisive images (3,5).

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Analyze

Problem 11901

c) 2∫(x+1)ex2+2x+3dx2 \int(x+1) e^{x^{2}+2 x+3} d x2∫(x+1)ex2+2x+3dx

Problem 11902

Problem 11903

8. Describe the transformation from y=x−5+3y=\sqrt{x-5}+3y=x−5​+3 to y=x+7y=\sqrt{x}+7y=x​+7.

Problem 11904

Problem 11905

Problem 11906

Problem 11907

{x+y−z=22x+4y+z=−33x+3y−2z=5\left\{\begin{array}{l}x+y-z=2 \\ 2 x+4 y+z=-3 \\ 3 x+3 y-2 z=5\end{array}\right.⎩⎨⎧​x+y−z=22x+4y+z=−33x+3y−2z=5​

Problem 11908

Problem 11909

Problem 11910

Problem 11911

(b) (0,1)(0,1)(0,1) and (2,2)(2,2)(2,2)The slope is □\square□ .

Problem 11912

21x−6y=549+y=3.5x\begin{array}{c} 21 x-6 y=54 \\ 9+y=3.5 x \end{array}21x−6y=549+y=3.5x​4. The system of equations shown has how many solutions?

Problem 11913

Problem 11914

Determine if the representation below is an example of positive correlation, * 1 point negative correlation, or has no association.A The number of ice cubes in a drink and the temperature of the drink. Positive Negative No Association

Problem 11915

Problem 11916

jelect all ratios equivalent to 5:45: 45:4. 11:211: 211:2 60:4860: 4860:48 3:6

Problem 11917

Determine If the represemtation below is an example of positive correlation, 1 point negathe correlation, or has no assoclation.C Positive Negative No AssociationJustify your answer below. *Your answer

Problem 11918

Problem 11919

Problem 11920

Problem 11921

Problem 11922

Determine if the representation below is an example of positive correlation, * 1 polit negative correlation, or has no association.H The number of colors used in a painting and the cost of the painting. Positive Negative No AssociationJustify your answer below. *Your answer

Problem 11923

1. Without graphing them, tell if the following two lines are parallel, perpendicular, or neither. 3y+2x=125−3y=2x\begin{array}{l} 3 y+2 x=12 \\ 5-3 y=2 x \end{array}3y+2x=125−3y=2x​

Problem 11924

Problem 11925

Part 1 of 3 (a) Find the run, rise, and slope given by triangle ABCA B CABC. run: □\square□ rise: □\square□ slope: □\square□

Problem 11926

45,1245,1245,12Factors of 45 Factors of 12 \qquad \qquad —, \qquad , \qquad \qquad \qquad \qquad , \qquad

Problem 11927

Problem 11928

Problem 11929

Problem 11930

Problem 11931

Problem 11932

Problem 11933

Problem 11934

Problem 11935

Problem 11936

Problem 11937

Problem 11938

Problem 11939

Problem 11940

The function fff is given by f(x)=1+3cos⁡xf(x)=1+3 \cos xf(x)=1+3cosx. What is the average rate of change of fff over the interval [0,π][0, \pi][0,π] ?A −6π-\frac{6}{\pi}−π6​ (B) −2π-\frac{2}{\pi}−π2​ (C) 2π\frac{2}{\pi}π2​ (D) 1

Problem 11941

Problem 11942

Which of these figures would have the lowest melting point?AB C

Problem 11943

Determine the domain on which the following function is decreasing.

Problem 11944

Exercice 7: Sur quelle(s) figure(s) a-t-on colorié 14\frac{1}{4}41​ de la surface ? (1) (2) (3)Exercice 8: Dans chacun des cas suivants, quelle fraction de la surface a été coloriée? (1) (2) (3)

Problem 11945

Determine the domain on which the following function is decreasing.

Problem 11946

Problem 11947

2) y=32x−3y=−2+2x\begin{array}{l} y=\frac{3}{2} x-3 \\ y=-2+2 x \end{array}y=23​x−3y=−2+2x​

Problem 11948

Problem 11949

Mark for ReviewThe graph shows the position as a function of time for an object of mass 5 kg moving in one dimensio The kinetic energy of the object at 5 s is most nearly

Problem 11950

y≤−x−4y>3x−8\begin{array}{l} y \leq -x - 4 \\ y > 3x - 8 \end{array}y≤−x−4y>3x−8​

Problem 11951

37° 35° το 103°

Problem 11952

23<2y−9<2623 < 2y - 9 < 2623<2y−9<26

Problem 11953

Which of the following is the set of all real numbers xxx such that x+2>x+5x+2>x+5x+2>x+5 ? A. The set containing only zero B. The set containing all nonnegative real numbers C. The set containing all negative real numbers D. The set containing all real numbers E. The empty set

Problem 11954

Question 49 (1 point) Matthew is trying to figure out which value for xxx is NOT a solution for tan⁡x=0\tan x=0tanx=0. Do you have an answer? Choose one. a) −3π-3 \pi−3π b) 0 c) 2π2 \pi2π d) π2\frac{\pi}{2}2π​

Problem 11955

c) $2 \int(x+1) e^{x^{2}+2 x+3} d x$

8. Describe the transformation from $y=\sqrt{x-5}+3$ to $y=\sqrt{x}+7$ .

$\left\{\begin{array}{l}x+y-z=2 \\ 2 x+4 y+z=-3 \\ 3 x+3 y-2 z=5\end{array}\right.$

(b) $(0,1)$ and $(2,2)$
The slope is $\square$ .

$\begin{array}{c} 21 x-6 y=54 \\ 9+y=3.5 x \end{array}$
4. The system of equations shown has how many solutions?

Determine if the representation below is an example of positive correlation, * 1 point negative correlation, or has no association.
A The number of ice cubes in a drink and the temperature of the drink. Positive Negative No Association

jelect all ratios equivalent to $5: 4$ . $11: 2$ $60: 48$ 3:6

Determine If the represemtation below is an example of positive correlation, 1 point negathe correlation, or has no assoclation.
C Positive Negative No Association
Justify your answer below. *
Your answer

Determine if the representation below is an example of positive correlation, * 1 polit negative correlation, or has no association.
H The number of colors used in a painting and the cost of the painting. Positive Negative No Association
Justify your answer below. *
Your answer

1. Without graphing them, tell if the following two lines are parallel, perpendicular, or neither. $\begin{array}{l} 3 y+2 x=12 \\ 5-3 y=2 x \end{array}$

Part 1 of 3 (a) Find the run, rise, and slope given by triangle $A B C$ . run: $\square$ rise: $\square$ slope: $\square$

$45,12$
Factors of 45 Factors of 12 $\qquad$ $\qquad$ —, $\qquad$ , $\qquad$ $\qquad$ $\qquad$ $\qquad$ , $\qquad$

The function $f$ is given by $f(x)=1+3 \cos x$ . What is the average rate of change of $f$ over the interval $[0, \pi]$ ?
A $-\frac{6}{\pi}$ (B) $-\frac{2}{\pi}$ (C) $\frac{2}{\pi}$ (D) 1

Which of these figures would have the lowest melting point?
A
B C

Exercice 7: Sur quelle(s) figure(s) a-t-on colorié $\frac{1}{4}$ de la surface ? (1) (2) (3)
Exercice 8: Dans chacun des cas suivants, quelle fraction de la surface a été coloriée? (1) (2) (3)

2) $\begin{array}{l} y=\frac{3}{2} x-3 \\ y=-2+2 x \end{array}$

Mark for Review
The graph shows the position as a function of time for an object of mass 5 kg moving in one dimensio The kinetic energy of the object at 5 s is most nearly

$\begin{array}{l} y \leq -x - 4 \\ y > 3x - 8 \end{array}$

$23 < 2y - 9 < 26$

Which of the following is the set of all real numbers $x$ such that $x+2>x+5$ ? A. The set containing only zero B. The set containing all nonnegative real numbers C. The set containing all negative real numbers D. The set containing all real numbers E. The empty set

Question 49 (1 point) Matthew is trying to figure out which value for $x$ is NOT a solution for $\tan x=0$ . Do you have an answer? Choose one. a) $-3 \pi$ b) 0 c) $2 \pi$ d) $\frac{\pi}{2}$

Using the following number line, which of the following statements must be true? A. $|x-y|<1$ B. $|x-y|=1$ C. $|x-y|>1$ D. $|x-y|<\frac{1}{2}$ E. $|x-y|=\frac{1}{2}$

Determine whether the integral is divergent or convergent. If it is convergent, evaluate it. If not, state your answer as "divergent". $\int_{6}^{\infty} \frac{7}{(x+5)^{3 / 2}} d x=$

he figure below represents a solution set for which of the following inequalities? A. $-2 x+12<x-2$
3. $4 x-2 \geq 2 x-3$ C. $5 x+5 \geq x$ D. $3 x-1 \leq 5 x+3$ E. $6 x-3>3 x+2$

Find the range of possible values for $x$ . $\qquad$
The range is $\square$ $<x<$ $\square$ (Simplify your answers.)

Find the best predicted value of $y$ given that $x=5$ for 6 pairs of data that yield $r=0.444, \bar{y}=18.3$ and the regression equation $y=2+5 x$ . State the critical level.

Question 3 (1 point) An equivalent trigonometric expression for $\tan (-x)$ is a) $\tan x$ b) $-\cot x$ c) $\cot x$ d) $-\tan x$

To use your knowledge of $x$ - and $y$ -intercepts to choose the correct graph of the equation, find the intercepts of the equation: $4x + 6y = 12$

Put these numbers in order from least to greatest. 1.94 $\frac{5}{8}$ 0.33
Submit

What is the exact value of $\tan \left(-\frac{\pi}{12}\right)$ ? $-2+\sqrt{3}$ $-\frac{\sqrt{3}}{3}$
$\frac{\tan \frac{7 \pi}{12}}{1-\sqrt{3}}$ $1-\sqrt{3}$

Which equations equal $4(2+1 c)$ ? Choose all: (A) $6+4 c$ , (B) $6+5 c$ , (C) $8 \times 4 c$ , (D) $8+4 c$ , (C) $(4 \times 2)+(4 \times 1 c)$ , (๑) $(4 \times 2) \times(4 \times 1 c)$ .

Fill in the blank to make $w^{2}-12w+$ a perfect square.

How much larger is Lake Huron's area than Lake Erie? Use $22,973 - 9,906$ to find the difference.