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Problem 1301

In many games, rolling doubles has beneficial results. Three people are playing a board game in which two dice are rolled. a) Use a tree diagram to illustrate the probability distribution of the number of doubles in three rolls of two dice. b) Calculate the probability of each outcome in the sample space. c) What is the expected number of doubles in the three rolls?

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Problem 1302

It is believed that $11 \%$ of all Americans are left-handed. A college needs to know how many left-handed desks to place in the big lecture halls being constructed on its campus. In a random sample of 250 students from that college, whether or not a student was left-handed was recorded for each student. The college wants to know if the data provide enough evidence to show that students at this college have a higher percentage of left-handers than the general American population? State the random variable, population parameter, and hypotheses. State the Type I and Type II errors in the context of this problem. a) The symbol for the random variable involved in this problem is ? $\square$ The wording for the random variable in context is as follows: Select an answer b) The symbol for the parameter involved in this problem is $\square$ ?
The wording for the parameter in context is as follows: Select an answer c) Fill in the correct null and alternative hypotheses: $\begin{array}{l} H_{0}: \text { ? } 0 \text { ? } \cdot \text { } \square \\ H_{A}: ? \text { ? ? } \cdot \text { } \square \end{array}$ d) A Type I error in the context of this problem would be:
Select an answer $\square$ e) A Type II error in the context of this problem would be: Select an answer

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Problem 1303

In the figures below $\triangle E F G \sim \triangle H J K$ , and EX and HY are medians.
2. What is the length of HY?

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Problem 1304

4. $\triangle A B C$ and $\triangle D E F$ are shown below. The $m \angle A=51^{\circ}$ and $m \angle F=39^{\circ}$ .
Which of the following statements is true?
The triangles are similar because all angles are congruent and the sides are proportional.
The triangles are not similar because all angles are not congruent and the sides are not proportional.
The triangles are not similar because all angles are not proportional and the sides are not congruent.
The triangles are similar because all angles are proportional and the sides are congruent. Clear All Unanswered Previous 1 2 3 13 $\square$ 5 6 7 8 9 10 Next Review \& Submit

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Problem 1305

19. The domain of $f(x, y)=\frac{\sqrt{y-x^{2}}}{y+x}$ consists of all points $(x, y) \in R^{2}$ such that (a) $y \geq x^{2}, y=-x$ (b) $y \leq x^{2}, y \neq-x$ (c) $y=x^{2}, y \neq x$ (d) $y \geq x^{2}, y \neq-x$ (e) Else

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Problem 1306

$\text{The map of North America below shows the position of the polar front jet stream on January 7, 2014, and the location of Atlanta, Georgia.}$ $\text{Which type of air mass was most likely located over Atlanta, Georgia?}$ \begin{enumerate} \item mT \item mP \item cT \item cP \end{enumerate}

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Problem 1307

Which of the following is the correct expression for the concentration based equilibrium constant for the reaction: $\mathrm{Mg}(\mathrm{OH})_{2}(\mathrm{~s}) \rightleftharpoons \mathrm{Mg}^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq})$ I. $\mathrm{K}_{\mathrm{C}}=\left[\mathrm{Mg}^{2+}\right]\left[\mathrm{OH}^{-}\right]^{2}$
A II. $\mathrm{K}_{\mathrm{C}}=\frac{\left[\mathrm{Mg}^{2+}\right]\left[\mathrm{OH}^{-}\right]}{\left[\mathrm{Mg}(\mathrm{OH})_{2}\right]}$ III. $\mathrm{K}_{\mathrm{C}}=\frac{\left[\mathrm{Mg}^{2+}\right]\left[\mathrm{OH}^{-}\right]^{2}}{\left[\mathrm{Mg}(\mathrm{OH})_{2}\right]}$
B c IV. $\mathrm{K}_{\mathrm{C}}=\left[\mathrm{Mg}^{2+}\right]\left[\mathrm{OH}^{-}\right]$
D

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Problem 1308

In the state of New York, there are 232 eight year olds diagnosed with ASD out of 18,555 eight year olds evaluated. In the state of Maryland, there are 43 eight year olds diagnosed with ASD out of 2,464 eight year olds evaluated. Is there enough evidence to show that the proportion of children diagnosed with ASD in New York is more than the proportion in Maryland? Test at the $1 \%$ level.
State the hypotheses. $\begin{array}{l} H_{0}: p_{1} ? \otimes p_{2} \\ H_{a}: p_{1} ? \otimes p_{2} \end{array}$
Calculate the test statistics. Round to four decimal places. $\hat{p}_{1}=$ $\square$ $\hat{p}_{2}=$ $\square$ Calculate the standardized test statistic. Round three decimal places. $z=$ $\square$ Find the $p$ -value. Round to four decimal places. $p$ -value $=$ $\square$ State your decision. Since the p -value is less than .01 , reject $H_{0}$ . Since the $p$ -value is greater than .01 , fail to reject $H_{0}$ . Since the $p$ -value is less than .01 , fail to reject $H_{0}$ . Since the $p$ -value is greater than .01 , reject $H_{0}$ .
Interpret the results. At the $1 \%$ level of significance, there is enough evidence to show that the proportion of children diagnosed with ASD in New York is less than the proportion in Maryland. At the $1 \%$ level of significance, there is enough evidence to show that the proportion of children diagnosed with ASD in New York is not equal to the proportion in Maryland. At the $1 \%$ level of significance, there is not enough evidence to show that the proportion of children diagnosed with ASD in New York is not equal to the proportion in Maryland. At the $1 \%$ level of significance, there is not enough evidence to show that the proportion of children diagnosed with ASD in New York is more than the proportion in Maryland. At the $1 \%$ level of significance, there is enough evidence to show that the proportion of children diagnosed with ASD in New York is more than the proportion in Maryland.

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Problem 1309

Verify that the function satisfies the three hypotheses of Rolle's theorem on the given interval. Then find all numbers $c$ that satisfy the conclusion of Rolle's theorem. (Enter your answers as a commaseparated list.) $f(x)=3 x^{2}-6 x+4, \quad[-1,3]$ $c=$ $\square$

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Problem 1310

A recent study questioned students in Fresno City College to see if they felt stress in their math and psychology classes. Out of 78 math students, 46 said they felt stress, while out of 48 psychology students, 26 said they felt stress. Is this enough evidence to show that the stress experienced by math students (Population 1) are significantly different from psychology students (Population 2) at a significance level of $\alpha=0.01$ ?
1. For this study, we should use Select an answer
2. The null and alternative hypotheses would be:
3. The test statistic $=$ $\square$ (please show your answer to 3 decimal places.)
4. The $p$ -value $=$ $\square$ (Please show your answer to 4 decimal places.)
5. The $p$ -value is Select an answer $\square$ $\alpha$
6. Based on this, we should Select an answer $\square$ the null hypothesis.
7. As such, the final conclusion is that ... The sample data suggests that the first populaton proportion is significantly different from the second population proportion at $\alpha=0.01$ , so there is sufficient evidence to conclude that the stress experienced by math students are different from psychology students. The sample data suggests that the first population proportion is not significantly different from the second population proportion at $\alpha=0.01$ , so there is not sufficient evidence to conclude that the stress experienced by math students are different from psychology students.

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Problem 1311

8. $-1,-\frac{5}{6}, 0$ $\longrightarrow>\quad<$ $\qquad$

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Problem 1312

$\begin{array}{l} y<-4 x+6 \\ y>\frac{1}{4} x+4 \end{array}$
Answer $(3,9)$ $(-2,-4)$ (9.5) $(-7.9)$ DeltaMath - Googl...

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Problem 1313

Find the $x$ - and $y$ -intercepts of the graph of the linear equation $3 x+6 y=24$ .
The $x$ -intercept is $\square$ $\square$ .
The $y$ -intercept is $\square$ $\square$ .

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Problem 1314

$\square P$ $\frac{\text { Technology }}{\text { register if interested }}$ register if interested anajors, sample directly to working members of our ed your Google Drive already) $\sim$ Dashboard I Rapialdontio - 8 Home Ebook-AP Statistics-Lavin-YF achieve bfwpub.com/courses/202med/ebook\#ebookshell Co ipst org bookmatiks - 2 - M 자 O ii (1) 图目 6 - 目 $\square$ E - ）放 4 1. 1 - 6 - * 6 5 ล ！ random variable $X$ be the number of cars (including SUVs and light trucks) they own. Here is the probability model if we ignore the few households that own more than 5 cars: \begin{tabular}{|l|c|c|c|c|c|c|} \hline Number of cars X: & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline Probability: & 0.09 & 0.36 & 0.35 & 0.13 & 0.05 & 0.02 \\ \hline \end{tabular}
27. What's the expected number of cars in a randomly selected American household? a. 1.00 b. 1.75 c. 1.84 d. 2.00 e. 2.50
28. The standard deviation of $X$ is $\sigma_{Y}=1.08$ . If many households were selected at random, which of the following would be the best interpretation of the value 1.08 ? a. The mean number of cars would be about 1.08 . Sign out Nov 13 4:50 us

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Problem 1315

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 1316

Where is the blue dot on the number line? $\square$

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Problem 1317

Dashboard
14 Multiple Choice 3.5 points Courses
$14 / 39$ Calendar
-11.4\%
$-12 \%$
$12 \%$ $11.4 \%$

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Problem 1318

$\begin{array}{l}-6 x+3 y=-15 \\ y=-7\end{array}$

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Problem 1319

Graph this inequality: $2 x+3 y>12$
Plot points on the boundary line. Select the line to switch between solid and dotted. Select a region to shade it.

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Problem 1320

Question Given the function $f(x)=-e^{x}-8$ : (a) Determine the domain in interval notation, (b) Determine the range in interval notation, (c) Identify the horizontal asymptote.

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Problem 1321

The following exponential function models the number of students who are ill with Covid as a result of infection by other students in a large lecture section: $N(t)=3\left(1.3^{\frac{t}{4}}\right)$ $N$ is the number of infected students and $t$ is the number of days after the initial exposure. Answer the following questions:
Is this a growth or decay function? Type growth or decay: $\square$ A
The percentage increase in Covid cases is $\square$ A in how many days? $\square$ A
How many students were infected initially? $\square$ $\Delta$

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Problem 1322

Sulue fie fillowing equations tors $\begin{array}{rrr} 2 x-5=- & \text { ar } & 2 x-5=-1 \\ 2 x=6 & \text { ar } & 2 x=4 \\ z=3 & \text { ar } & x=2 \end{array}$
Thice integess ar simplifed tactions) What $s$ the rext sten?
1. Euature $2 x-5 \mid>1$ fir the zalues found in the previcus step

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Problem 1323

Refer to the figure to determine which is a true statement for the given information. $1 \overline{F G}$ is an altitude. A $\angle D G F$ is a right angle. B $D F=E F$ C $D G=G E$ D $\angle D F G \cong \angle E F G$ $2 \overline{F G}$ is a median. F $\angle D G F$ is a right angle. G $D F=E F$ H $D G=G E$ J $\angle D F G \cong \angle E F G$ 3 If $\overline{R U}$ is an altitude for $\triangle R S T$ , find $x$ .

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Problem 1324

Question 1 (1 point) $\checkmark$ Saved
Below is a graph of the derivative $y=f^{\prime}(x)$ . Use the graph to identify the location of the local minimum(s) of the function $f(x)$ . A. $x= \pm 2 \& 0$ B. $x= \pm 2$ c. $x=-3 \& 1$ D. $x=1$

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Problem 1325

2. a. $\frac{x^{3}+x-8 x^{2}+37}{x+4}=x^{2}-12 x+49-\frac{159}{x+4}$ b. $\frac{10 x^{3}-9 x^{2}-8 x+11}{5 x-2}=2 x^{2}-x-2+\frac{7}{5 x-2}$ c. $\frac{3 x+2-x^{3}}{x-2}=-x^{2}-2 x-1$ d. $\frac{x^{4}-2 x^{2}+12}{x-4}=x^{3}+4 x^{2}+14 x+56+\frac{236}{x-4}$ e. $\frac{x^{5}-2 x^{4}-7 x^{3}+13 x^{2}+2 x-18}{x^{2}-2 x-3}=x^{3}-4 x+5-\frac{3}{x^{2}-2 x-3}$

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Problem 1326

Question Which set of ordered pairs does not represent a function?
Answer $\{(5,7),(4,-2),(-8,8),(4,-9)\}$ $\{(6,-2),(-2,-7),(-9,-4),(8,-7)\}$ $\{(-6,-7),(0,9),(6,-7),(3,-4)\}$ $\{(4,6),(9,-8),(3,2),(-9,-8)\}$

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Problem 1327

Question Which set of ordered pairs does not represent a function?
Answer $\{(-3,-2),(-7,-1),(70),(7,-5)\}$ $\{(-3,-5),(-7,-5),(8,-3),(3,8)\}$ $\{(3,8),(-7,5),(-9,9),(7,2)\}$ $\{(-8,6),(-7,-4),(0,6),(1,9)\}$

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Problem 1328

(2X+)2(X->) f(x) = (2x+1)² (X<>) (X+7)085) FIN) (X+1) FIN 15 HA -ZEE VA ROOTS (x+7) -MUL HOLES SIGN CHART -7-√2 -2-19 SKETCH X+7++ -ENT - - SKE

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Problem 1329

Q2. The stereochemistry of the product for the given reaction is? A. cisisomers B. diastereomer C. racemic mixture D. meso $\mathrm{Br}_{2} \mathrm{CH}_{2} \mathrm{Cl}_{2}$ E. transisomers

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Problem 1330

Question Watch
Which set of ordered pairs does not represent a function?
Answer $\{(0,6),(9,-3),(0,9),(6,-5)\}$ $\{(-7,0),(7,0),(-2,-8),(-8,-1)\}$ $\{(7,-6),(-7,-1),(-8,0),(3,0)\}$ $\{(2,0),(7,6),(-5,6),(1,-7)\}$

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Problem 1331

Question
Which set of ordered pairs does not represent a function?
Answer $\{(1,-8),(8,-2),(-7,-4),(-7,3)\}$ $\{(8,3),(-2,-8),(-5,-8),(-6,-5)\}$ $\{(-2,4),(9,-8),(1,-4),(-1,-4)\}$ $\{(-8,-3),(-3,1),(6,-3),(4,0)\}$

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Problem 1332

Which equation represents a line which is perpendicular to $x=0$ ?
Answer Attempt 1 out of 3 $y=x-3$ $x=-4 y$ Submit Answer $x=5$ $y=-6$

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Problem 1333

2. Error Analysis Raul has 32.4 milliliters of solution. He uses 0.1 milliliter of solution for each experiment. Paul states that he can complete 3.24 trials using all of his solution. How do you respond to him?

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Problem 1334

a true
5 If line $p$ is a perpendicular bisector for $\triangle A B C$ , what are two conclusions you can draw.

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Problem 1335

$\begin{array}{c} \text { P(hsuccesses })=n^{C} p^{n}(1-\rho)^{n-h} \\ n^{B}=\frac{n!}{(n-h)|h|} \end{array}$ ${ }_{7} C_{5}\left(\frac{1}{6}\right)^{2}\left(\frac{1}{6}\right)^{5}$ ${ }_{7} C_{5}\left(\frac{1}{6}\right)^{5}\left(\frac{5}{6}\right)^{2}$ ${ }_{7} \mathrm{C}_{2}\left(\frac{1}{6}\right)^{2}\left(\frac{5}{6}\right)^{5}$ ${ }_{7} C_{2}\left(\frac{2}{6}\right)^{2}\left(\frac{4}{6}\right)^{5}$

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Problem 1336

A rider's height, $h$ , in metres on a Ferris wheel is modelled by $h(t)=-49 \cos \left(\frac{2 \pi t}{142}\right)+52$ where $t$ is time in seconds. Solve for the AROC between $t=138$ and $t=140$ . Does this represent when the rider is going to the top of the ride, or coming back towards the ground? How do you know? Since the slope is negative, the rider is getting closer to the ground Since the slope is negative, the rider is heading backwards through time Since the slope is negative, the rider is moving to the top of the ride Since the slope is less than 1 , the rider is heading back towards the ground Previous Page Next Page Page 11 of 12

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Problem 1337

Follow the steps for graphing a rational function to graph the function $R(x)=\frac{x+3}{x(x+7)}$
If needed, first write the given function as a single rational expression. Then, factor the numerator and denominator of $\mathrm{R}(\mathrm{x})$ . Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. $R(x)=$ $\square$ (Type your answer in factored form. Do not simplify.) B. R(x) cannot be factored further
What is the domain of $R(x)$ ? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. $\{x \mid x \neq 0,-7\}$ $\square$ (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) B. $\{x \mid x<$ $\square$ \} (Type an integer or a simplified fraction.) C. $\{x \mid x \geq$ $\square$ \} (Type an integer or a simplified fraction.) D. The domain is the set of all real numbers.
Write $\mathrm{R}(\mathrm{x})$ in lowest terms. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. $R(x)=$ $\square$ (Simplify your answer.) B. $R(x)$ is already in lowest terms.

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Problem 1338

$\begin{array}{l}y=5 x+1 \\ y=-2 x-8\end{array}$

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Problem 1339

$\begin{array}{l}20 x-5 y=5 \\ 4 x-y=1\end{array}$

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Problem 1340

Question 2 of 3
For a particular reaction $\mathrm{K}=98000$ . What can be said about this reaction?
A There are many more products than reactants in the equilibrium mixture.
B There are many more reactants than products in the equilibrium mixture. c There are roughly equal amounts of reactants and products in the equilibrium mixture.
D The reaction has not yet reached equilibrium because K does not equal 1.

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Problem 1341

Sports American football fields measure 100 yards long between the end zones, and are $53 \frac{1}{3}$ yards wide. Is the length of the diagonal across this field more or less than 120 yards? Explain. $\qquad$

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Problem 1342

ERROR ANALYSIS Describe the error in finding $m \angle 1$ . The sum of $360^{\circ}$ and $154^{\circ}$ should be $514^{\circ}$ . The sum of the measures of the angles should be $180^{\circ}$ . The sum of $115^{\circ}$ and $39^{\circ}$ should be $144^{\circ}$ . The sum of the measures of the angles should be $90^{\circ}$ . Correct the error in finding $\mathrm{m} \angle 1$ . $115^{\circ}+39^{\circ}+m \angle 1=$ $\square$ $\square$ $+m \angle 1=$ $\square$ $m \angle 1=$ $\square$ : $514^{\circ}$ $360^{\circ}$ $216^{\circ}$ 206 $180^{\circ}$ $154^{\circ}$ $144^{\circ}$ $90^{\circ}$ $64^{\circ}$ $36^{\circ}$ $26^{\circ}$

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Problem 1343

NAME
3. Tyler incorrectly says that the constant term of $(x+4)(x-4)$ is zero. a. What is the correct constant term? b. What is Tyler's mistake? Explain your reasoning.
4. Which of these standard form equations is equivalent to $(x+1)(x-2)(x+4)(3 x+7) ?$ a. $x^{4}+10 x^{3}+15 x^{2}-50 x-56$ b. $x^{4}+10 x^{3}+15 x^{2}-50 x+56$ c. $3 x^{4}+16 x^{3}+3 x^{2}-66 x-56$ d. $3 x^{4}+16 x^{3}+3 x^{2}-66 x+56$
5. Select all polynomial expressions that are equivalent to $5 x^{3}+7 x-4 x^{2}+5$ . a. $13 x^{5}$ b. $\quad 5 x^{3}-4 x^{2}+7 x+5$ c. $5 x^{3}+4 x \cdot 2+7 x+5$ d. $5+4 x-7 x^{2}+5 x^{3}$ e. $5+7 x-4 x^{2}+5 x^{3}$

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Problem 1344

Select all the true statements. A. The slope of $m$ is $-\frac{2}{5}$ . B. The slope of $q$ is $-\frac{5}{2}$ . C. The slope of $n$ is $\frac{2}{5}$ . D. The slope of $p$ is $-\frac{5}{2}$ . E. The slope of $p$ is the negative reciprocal of the slope of $q$ .

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Problem 1345

In which number does the value of the digit 7 represent 10 times the value of the digit 7 in 7,000?
A 23,078

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Problem 1346

In an acute triangle, the orthocenter will be located '

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Problem 1347

Given the following logarithm function, $f(x)=2 \log _{2}(x+8)-4$
Fill in the blanks below. For each blank your answer should be submitted with no spaces between any characters. Coordinate points require brackets and equations of lines should be written as $x=\ldots$ or $y=\ldots$ You must specify the sign of infinity (either +inf or -inf) when writing an interval.
The $y$ -intercept is: $\square$ A
The $x$ -intercept is: $\square$ A
The mathematical domain is: $\square$ A)
The equation of the Vertical Asymptote is: $\square$ A

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Problem 1348

This graph gives Selma's distance from home over time. What does the slope of the line show in this situation?
Select from the drop-down menus to correctly complete each statement.
For this situation, the slope of the line represents Choose...
The slope is Choose $\square$ from home Choose. $\square$ which means that Selma's distance by $\square$ Choose miles per hour.
Selma's Distance from Home

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Problem 1349

4. In the United States, it is well-known that for the population of males, the mean height is 69.1 inches with standard deviation 4 inches. A researcher believes that a certain group is significantly taller than other males, due to genetic factors. For a sample of 25 such men, the mean is 71.2 inches with standard deviation 3.5 inches. a. Can it be reasonably assumed that the population is normally distributed? Are the criteria met to perform a z-test for the mean? Explain. b. Set up the null and alternative hypothesis to test if this population is taller than average. c. Calculate the value of the test statistic. d. Find the p-value. e. At the $5 \%$ level of significance $(\alpha=0.05)$ , make a decision whether to reject $H_{0}$ . f. What can we conclude?

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Problem 1350

19. Discuss the symmetry for each of the following equations. (a) $y=\frac{1}{x}$ (b) $y=|x|$ (c) $y=x^{3}$ (d) $y=\sqrt{x}$

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Problem 1351

Use the first derivative to find all critical points and use the second derivative to find all inflection points. Use a graph to identify each critical point as a local maximum, a local minimum, or neither. $f(x)=x^{4}-18 x^{2}+4$
NOTE: Enter the exact answers, or round them to three decimal places. Enter the number of critical points Choose one
Enter the number of inflection points Choose one

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Problem 1352

for a manturing company wishes to reduce the mean time needed serer visit to a customer location in his region. Nationally, this company sets a standard that a customer service visit should last at most four hours, on average. He is concerned that the service technicians in his region may be violating that standard, so he samples 41 customer service visits. In this sample, the mean time needed for a service visit is 4.2 hours with standard deviation 1.6 hours. In a previous example, we determined that the $t$ -test for the mean should be conducted. a. Set up the null and alternative hypothesis to test the regional manager's claim that the standard set by the company is being violated. b. Calculate the value of the test statistic. c. Find the p-value. d. At the $\alpha=0.05$ level of significance, make a decision whether to reject $\mathrm{H}_{0}$ . e. Interpret this conclusion.

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Problem 1353

A certain game involves tossing 3 fair coins, and it pays $9 \notin$ for 3 heads, $4 \notin$ for 2 heads, fand $2 \notin$ for 1 head. Is $4 \notin$ a fair price to pay to play this game? That is, does the $4 \phi$ cost to play make the game fair?
The $4 c$ cost to play $\square$ is not a fair price to pay because the expected winnings are $\square$ 4. (Type an integer or a fraction. Simplify your answer.)

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Problem 1354

No calculator is allowed on this question. At noon, $t=0$ , a parking lot has 35 cars in the lot when the parking company begins to monitor how many cars are entering and leaving the lot. For the remainder of the day (until midnight), cars enter the lot at a rate modeled by $E(t)=16 t-3 t^{2}$ , and cars leave the lot at a rate modeled by $L(t)=-2 t+15$ , where both $E(t)$ and $L(t)$ are measured in cars per hour.
During which time interval is the number of cars in the lot increasing after the parking company begins monitoring the lot?
Elimination Tool Select one answer
A $12: 00 \mathrm{pm}$ (noon) to $3: 00 \mathrm{pm}$
B 3:00pm to 12:00am (midnight)
C 12:00 pm (noon) to 1:00pm and from 5:00 pm to 12:00 am (midnight)
D 1:00pm to $5: 00 \mathrm{pm}$

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Problem 1355

Sec 9.4 Rare Events, the
1. At significance level $\alpha=0.10$ , determine if the null hypothesis should be rejected given the test statistic and p -value. 1 A manufacturer of automobile batteries claims that the average life of its best battery is 54 months. A consumer advocacy group believes that this might be incorrect. The test statistic is found to be -7.07 and the p -value is $\approx 0$ .

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Problem 1356

Ten thousand raffle tickets are sold. One first prize of $\$ 1000$ , two second prizes of $\$ 750$ , and three third prizes of $\$ 200$ each will be awarded, with all winners selected randomly. If you purchased one ticket, what are your expected gross winnings?
The expected gross winnings are $\square$ cents. (Round your answer to the nearest whole cent.)

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Problem 1357

2. At significance level $\alpha=0.10$ , determine if the mull hy pothesis should be rejected given the test statistic and p-value. Interpret the result. a. The FDA mandates that the average number of rodent hairs in a sumple of apple butter be no more than 4 hairs. A consumer advocacy group claims that a cerrain brand is violating this standard. The test statistic is found to be 294 and the p-value is 0.0016. b. A report states that doctors are late for $12 \%$ of all appointments. A doctor claims that less than $12 \%$ of his appointments are taken late. The test statistic is found to be -0.44 and the p -value is 0.3299 . c. A company claims it has redesigned light bulbs to last longer. The previous design had an average life of 1200 hours. The test statistic is 2.08 and the $p$ -value is 0.0188

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Problem 1358

3. Psychologists were interested in the physiological changes that occur when a person laughed. The subjects in the study watched videos to encourage laughter. While the subjects were laughing, the researchers measured the subject's pulse. In a sample of 90 subjects, the mean heart rate was 73.5 beats per minute (bpm) with standard deviation 6 bpm . The mean resting heart rate of the population of all adults is known to be 71 bpm with standard deviation 7.5 bpm . The researchers wish to determine if the mean heart rate is elevated during laughter. In a previous example, we determined that the z -test for the mean should be conducted. a. Set up the null and alternative hypothesis for this test. b. Calculate the value of the test statistic. c. Find the p-value. d. At the $\alpha=0.05$ level of significance, make a decision whether to reject $\mathrm{H}_{0}$ . e. Can it be determined that the mean heart rate is elevated during laughter?

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Problem 1359

4.0A. 4 Find factor pairs and multiples of numbers between 1 and 100. Determine whether a number is prime or composite. Label each number as prime or composite. Then explain how you know. \begin{tabular}{|l|l|l|l|} \hline Number & Write 3 multiples & \begin{tabular}{l} Write all the factors \\ of the number \end{tabular} & \begin{tabular}{l} prime or composite, \\ why? \end{tabular} \\ \hline 7 & & & \\ \hline 12 & & & \\ \hline 20 & & & \\ \hline 19 & & & \\ \hline \end{tabular}

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Problem 1360

5. At a certain government agency, all employees must undergo a training course and take an online quiz to assess their knowledge. The completion time for the population of all government employees who take the quiz is normally distributed with mean 32 minutes and standard deviation 13 minutes. It is suspected that one group of employees cheated on the quiz, since their completion time was shorter than average. In this sample of 34 employees, the mean completion time was 29 minutes with standard deviation 4 minutes. At the $\alpha=0.05$ level of significance, what can be concluded? Include the following steps in your test. - State the null and alternative hypotheses - Calculate the test statistic - Find the p-value - Make a decision whether to reject $\mathrm{H}_{0}$ - Write an interpretation of the results

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Problem 1361

7. It is reported that a stock price for a particular company will grow at a mean rate of $\$ 5$ per week. An investor believes that this report is not accurate. The changes in stock prices are recorded for ten weeks and the data appear below. Assume the population is normally distributed. \ $4 \$3 \$2 \$3 \$1 \$7 \$2 \$1 \$1 \$2 a. Verify that the conditions for the$ t $-test for the mean are satisfied. b. Set up the null and alternative hypothesis to test the investor's claim. c. Calculate the value of the test statistic. d. Find the$ p $-value. e. At the$ 5 \% $level of significance$ (\alpha=0.05) $, make a decision whether to reject$ H_{0}$.

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Problem 1362

$\text{Use the graph at right to answer the following questions.}$ $\text{What is the monopolist's profit-maximizing output?} \, \square$
\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{Hi there! It looks like you have a question about finding the monopolist's profit-maximizing output using a graph. However, it seems like some crucial information is missing, specifically the graph itself.}
\text{To help you determine the profit-maximizing output, I need to know more about the graph, such as:}
\begin{itemize} \item \text{The demand curve} \item \text{The marginal cost curve} \item \text{The marginal revenue curve} \end{itemize}
\text{Could you provide a description of these elements, or alternatively, any details you can see from the graph? Once I have that information, I will be able to guide you through finding the monopolist's profit-maximizing output.}
\text{The marginal cost is the MC on the graph. The marginal revenue is the MR on the graph and the demand curve is the D on the graph.}

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Problem 1363

Question 2 (1 point) Number of credits that students have at your school. Continuous Discrete Next Page Submit Quiz 1 of 10 questions saved

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Problem 1364

\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 1365

5) Albert and Belle are part of a scientific team studying thunderclouds. The team is about to launch a weather balloon into an active part of a cloud. Albert's rope is 7.8 m long and makes an angle of 36 degrees with the ground. Belle's rope is 5.9 m long. Draw a sketch and determine the angle that Belle makes with the ground. (6 marks)

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Problem 1366

Question 9 1 pts
Use the Alternating Series Estimation Theorem to find the minimum number of terms of the infinite series $\sum_{n=1}^{\infty} \frac{2(-1)^{n}}{n^{3}}$ we need to add to approximate the sum of the series with $\mid$ error $\mid \leq .016$ . 8 10 4 6

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Problem 1367

Jen sold $\frac{5}{8}$ of the bracelets she made. Sam sold $\frac{7}{10}$ of the bracelets she made. Who sold the greater fraction of bracelets?

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Problem 1368

Consider the diagram with the demand, MR, ATC, and MC curves. For a monopoly, the profit-maximizing levels of output and price will be shown by the point OA. E. OB. F. O C. G. OD. H. 1 Dollars per Unit 1500- 1400- 1300- 1200- 1100- " 1000- 900- 800- 700- 600- 500- 400- 300- 200- 100- H F G MŔ E MC 0 20 40 Units per period ATC D 60 g=

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Problem 1369

composite number, multiple, prime number, factor(s), array, odd, even,skip count
Use the above words to fill in the cart, then give an example of each \begin{tabular}{|l|l|l|} \hline Word & Defention & Example \\ \hline & \begin{tabular}{l} Adding the same number over and \\ over \end{tabular} & \\ \hline & \begin{tabular}{l} A number with many factors (more \\ than two factors) \end{tabular} & \\ \hline & \begin{tabular}{l} A number with no extra factors only 1 \\ and itself \end{tabular} & \\ \hline & To break a number into equal groups & \\ \hline & A number divisible by two & \\ \hline & A number NOT divisible by two & \\ \hline & \begin{tabular}{l} A whole number that evenly divides a \\ number without a remainder \end{tabular} & \\ \hline & \begin{tabular}{l} The product you get when you mutiply \\ a whole number by another whole \\ number \end{tabular} & \\ \hline \end{tabular}

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Problem 1370

Lesson 14: What Do You Know About Polynomials? - Let's put together what we've learned about polynomials so far. 14.1: What Else is True? $G(x)$ is a polynomial. Here are some things we know about it: - It has degree 3. - Both $x$ and $(x+4)$ are factors of $G$ . - It has 2 horizontal intercepts, but only 1 is negative. - Its leading coefficient is negative.
What else do we know is true about $G(x)$ ?

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Problem 1371

Do not leave any boxes blank! Blank is not the same as zero. \# $\quad$ Problem Answer
1. What subatomic particles are in germanium- 65 if its charge is $4+$ ? \# $\mathrm{p}^{+}$ \# of protons? \# $\mathrm{H}^{0}$ : \# of neutrons? \# $\mathrm{e}^{-:}$ \# of electrons?
2. What subatomic particles are in $\mathbf{M g}^{\mathbf{2 +}}$ if its mass number is $\mathbf{3 0 ?}$ \# $\mathrm{p}^{+}$ : \# of protons? $\# \mathrm{n}^{0}$ : \# of neutrons? \# $\mathrm{e}^{-}$ : \# of electrons?

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Problem 1372

4. If $y=\tan ^{-1}\left(\sin _{x} x\right)$ , then $\frac{d_{y}}{d_{x}}=$ A. $\left(\sec ^{-1}(\sin x)\right)^{2}$ C. $\left(\sec ^{-1}(\sin x)\right)^{2} \cos x$ B. D. $\frac{\mathrm{Cos}^{2}}{2+\sin ^{2} x}$
5. Let $f(x)=x^{4}+4 x-3$ , and let $g(x)$ denote the inverse of $f$ . Then $g^{\prime}(2)$ A. $\frac{1}{8}$ C. 8 B. $\frac{1}{32}$ D. 32 A. 2 B. $\frac{1}{2}$ D. $-\frac{1}{2}$ C. $\frac{10}{3}$ B. $-\frac{3}{10}$ D.

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Problem 1373

9. What subatomic particles are in an ion with atomic number 52, mass number $\mathbf{1 1 0}$ and a charge of 4+?
10. What subatomic particles are in a nitride ion if it has a mass number of $\mathbf{2 0 ?}$ \# $\mathrm{p}^{+}$ : \# of protons? $\# \mathrm{n}^{0}$ : \# $\mathrm{e}^{-}$ : : \# $\mathrm{p}^{+}$ : $\# \mathrm{n}^{0}$ : \# $\mathrm{e}^{-}$ : \# of neutrons? \# of electrons? \# of protons? \# of neutrons? \# of electrons?

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Problem 1374

Find the coordinates of the vertex for the parabola defined by the given quadratic function. $f(x)=2 x^{2}-4 x+1$
The vertex is $\square$ (Type an ordered pair.)

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Problem 1375

Kinora
Shen is walking. The number of minutes he has walked varies directly with the number of calories he has burned. See the graph below. (a) How many minutes does Shen walk per calorie burned? $\square$ minute(s) (b) What is the slope of the graph?

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Problem 1376

Whioh protiem wit have the greater quotient, 376.0 - 93 OR 376 + 92.0 . Explain how you know.

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Problem 1377

Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation for the parabola's axis of symmetry. Use the parabola to identify the function's domain and range. $f(x)=4-(x-3)^{2}$
Use the graphing tolil to graph the equation. Use the vertex and one of the intercepts when drawing the graph. Click to enlarge graph

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Problem 1378

Fundamental Counting Laron Mich Question 18, 11.1.26 HW Score: $85 \%, 17$ of 20 points Points: 0 of 1
Determine whether the given statement makes sense or does not make sense, and explain your reasoning. to determine the number of five-digit ZIP codes that are available to the U.S. Postal Service. Choose the correct answer below
A. This stetement makes sense because the Fundamental Counting Principle is used to find the number of ways in which a series of successive things can occur B. This statement makes sense because the Fundamental Counting Principle is used to find the number of ways in which one thing can occur. D. This statement does not make sense because the Fundamental Counting Principle is only used the number of ways in which one thing can occur.

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Problem 1379

triángulo $R S T$ se rota $180^{\circ}$ en sentido antihorario en torno al origen. resultado es $\triangle R^{\prime} S^{\prime} T^{\prime}$ tal como se muestra a continuación. (a) Las flechas a continuación muestran que las coordenadas de la izquierda se asignan a las coordenadas de la derecha. Llenar los espacios vacios para dar las coordenadas tras haber realizado la rotación. coordenadas originales $\rightarrow$ coordenadas finales $\begin{aligned} R(-5,-1) & \rightarrow R^{\prime}(1,5) \\ S(4,-7) & \rightarrow S^{\prime}(7,-4) \\ T(-3,-5) & \rightarrow T^{\prime}(5,3) \end{aligned}$ (b) Elegir la regla general que describe la rotación de $\triangle R S T$ a $\triangle R^{\prime} S^{\prime} T^{\prime}$ . $(x, y) \rightarrow(-y,-x)$ $(x, y) \rightarrow(x,-y)$ $(x, y) \rightarrow(-x,-y)$ $(x, y) \rightarrow(y, x)$ $(x, y) \rightarrow(-x, y)$ $(x, y) \rightarrow(-y, x)$ $(x, y) \rightarrow(y,-x)$

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Problem 1380

Question 18, 11.1.26 HW Score: 85\%, 17 of 20 points Points: 0 of 1
Determine whether the given statement makes sense or does not make sense, and explain your reasoning. I used the Fundamental Counting Principle to determine the number of five-digit ZIP codes that are available to the U.S. Postal Service.
Choose the correct answer below.
A. This statement does not make sense because the Fundamental Counting Principle is only used to find the number of ways in which a series of successive things can occur.
C. This statement makes sense because the Fundamental Counting Pring Principle is only used to find the number of ways in which one thing can occur. D. This statement makes sense because the Fundamental Counting Principle is used to find the number of ways in which one thing can occur

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Problem 1381

Syplan itow mav mow

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Problem 1382

Dreams Recalled during One Week \begin{tabular}{|l|c|c|c|c|} \hline & None & 1 to 4 & 5 or more & Total \\ \hline Group X & 15 & 28 & 57 & 100 \\ \hline Group Y & 21 & 11 & 68 & 100 \\ \hline Total & 36 & 39 & 125 & 200 \\ \hline \end{tabular}
The data in the table above were produced by a sleep researcher studying the number of dreams people recall when asked to record their dreams for one week. Group X consisted of 100 people who observed early bedtimes, and Group Y consisted of 100 people who observed later bedtimes. If a person is chosen at random from those who recalled at least 1 dream, what is the probability that the person belonged to Group $\mathrm{Y}^{\prime}$ ? A) $\frac{68}{100}$ B) $\frac{79}{100}$ C) $\frac{79}{164}$ D) $\frac{164}{200}$

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Problem 1383

Explain the meaning of the law of large numbers. Does this law say anything about what will happen in a single observation or experiment? Why or why not?
Explain the meaning of the law of large numbers. Choose the correct answer below A. As the experiment is done more and more times, the experimenter learns how to do the experiment better. Therefore the number of outcomes should start to match the theoretical probability. B. The theoretical probability is more accurate if it involves large numbers. C. As the experiment is done more and more times, the proportion of times that a certain outcome occurs should get closer to the theoretical probability that that outcome would occur. D. If an experiment is conducted 1000 times, the probability that a certain outcome occurs should become more predictable than if it was conducted 1500 times.

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Problem 1384

Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation for the parabola's axis of symmetry. Use the parabola to identify the function's domain and range. $f(x)=16-(x-1)^{2}$
Use the graphing tool to graph the equation. Use the vertex and one of the intercepts when drawing the graph.
Click to enlarge graph

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Problem 1385

For each scenario below, find the matching growth or decay model, $f(t)$ . $\$ 100$ million dollars is invested in a compound interest account. The interest rate is 5\%, compounded every half a year. $\qquad$ The concentration of pollutants in a lake is initially 100 ppm. The concentration decays by $30 \%$ every 3 years. The concentration of pollutants in a lake is initially 100 ppm. The concentration decays by 70\% every 3 years. 100 bacteria begin a colony in a petri dish. The bacteria increase by $30 \%$ every 3 hours. 100 bacteria begin a colony in a petri dish. The bacteria increase by 200\% every half hour. $\square$ The cost of producing high end shoes is currently $\$ 100$ . The cost is increasing by $50 \%$ every two years.
1. $f(t)=100\left(0.7^{\frac{t}{3}}\right)$
2. $f(t)=100\left(0.3^{\frac{t}{3}}\right)$
3. $f(t)=100\left(1.3^{\frac{t}{3}}\right)$
4. $f(t)=100\left(3^{2 t}\right)$
5. $f(t)=100\left(1.5^{\frac{t}{2}}\right)$
6. $f(t)=100\left(1.05^{2 t}\right)$

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Problem 1386

Let the event $E$ be the sum of a pair of dice that is divisible by 3 . List the events in $E^{C}$ . $\{5,7,11\}$ $\{3,6,9,12\}$ $\{2,4,6,8,10\}$ $\{2,4,5,7,8,10,11\}$

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Problem 1387

22. When the price of an inferior good rise, the substitution effect $\qquad$ the quantity demanded and the income effect $\qquad$ the quantity demanded. A. Decreases; decreases B. Decreases; increases C. Increases; decreases D. Increases; increases sis $x^{2}$ J 1 (o)
Normal

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Problem 1388

Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation of the parabola's axis of symmetry. Use the graph to determine the domain and range of the function. $f(x)=6 x-x^{2}-18$
Use the graphing tool to graph the equation. Use the vertex and one of the intercepts when drawing the graph.
Click to enlargitin graph

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Problem 1389

Find the range of the quadratic function. $f(x)=x^{2}-4 x+1$
Write your answer using interval notation. $\square$

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Problem 1390

Question 16
Use the rational zeros theorem to list all possible zeros of the function $f(x)=5 x^{3}-5 x^{2}-4 x+2$ . Enter the possible zeros separated by commas. You do not need to factor the polynomial.

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Problem 1391

20. $\frac{2 x+1}{3 x+1} \leq \frac{x-1}{3 x+1}$

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Problem 1392

Consider the expressions $5+8 k$ and $8 k+5$ . Determine why the expressions are equivalent. Using $k=3$ $\begin{array}{lc} 5+8 k & 8 k+5 \\ 5+8(3) & 8(3)+5 \\ 5+24=29 & 24+5=29 \end{array}$
Using $k=5$ $\begin{array}{lc} 5+8 k & 8 k+5 \\ 5+8(5) & 8(5)+5 \\ 5+40=45 & 40+5=45 \end{array}$
Complete the statements.
If both expressions have the same value after substituting and simplifying two different values for the variable, then they are $\square$ The value of both expressions when $k=3$ is $\square$ and when $k=5$ is 45 , so the expressions are $\square$ Intro Done

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Problem 1393

Which multiplication equation can you use to find $5 \div \frac{1}{3}$ ? $5 \times 3=15$ $1 \times 3=3$ $5 \times \frac{1}{3}=\frac{5}{3}$ $3 \times \frac{1}{5}=\frac{3}{5}$

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Problem 1394

32. $f(x)=2+\arcsin \left(x^{2}-1\right),[-1,1]$

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Problem 1395

Find the slope of the following linear equation. If the slope is undefined, enter UND for "undefined". $x=-14$
Answer

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Problem 1396

Using the Commutative Property
Use the commutative property to create equivalent expressions. Which expressions are equivalent to $2.2 t+3.5+$ 9.8? Check all that apply. $3.5+2.2 t+9.8$ $3+2 t+9$ $2.2+3.5+9.8 t$ $9.8+3.5+2.2 t$ $2.2 t+9.8+3.5$ $2.2 t+35.98$ Intro Done

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Problem 1397

Part I (10 pt., 2 pt. each) Indicate whether each of the following statements is true or false.
1. $|A|=|B|$ where $A=\{1,2,\{3,4\}\}$ and $B=\{a, a,\{a\},\{a, b\}\}$ .
2. $\{3,4\} \subseteq A$ where $A=\{1,2,\{3,4\}\}$ .
3. $\{3,4\} \in P(A)$ where $A=\{1,2,\{3,4\}\}$ and $P(A)$ is the power set of $A$ .
4. $(A \cup \emptyset) \cap \emptyset=A$ where $A$ is a set.
5. $\sum_{i=1}^{10} i=\sum_{j=10}^{20}(j-10)$

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Problem 1398

Show all of your work and annotations for full credit **\#1.) $\triangle A^{\prime \prime} B^{\prime \prime} C^{\prime \prime}$ is the image of $\triangle A B C$ after the composition of transformations: $R_{90^{\circ}}$ about the origin ${ }^{\circ}$ $T_{-4,-5}$ . Determine the slope of $\overline{C^{\prime \prime} B^{\prime \prime}}$ . $1^{\text {st }}$ Transformation: $\qquad$ $2^{\text {nd }}$ Transformation: $\qquad$ ) $A^{\prime} R^{\prime} C^{\prime}$ is graphed below. $\triangle A B C$ (not graphed) is the pre-image of $\triangle A^{\prime \prime} B^{\prime \prime} C^{\prime \prime}$ after the composition of

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Problem 1399

Which of the following would be a precipitate when the following aqueous solutions are mixed: $\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}$ and KI $\mathrm{INO}_{3}$ $\mathrm{PbI}_{2}$ $\mathrm{KNO}_{3}$ $\mathrm{PbK}_{2}$

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Problem 1400

14. Which is the first step Fred could use in solving $318-121$ if he was using place value to break the problem into smaller problems? A Subtract 10 from 218 B - Subtract 20 from 218 C Subtract 100 from 100 D Subtract 100 from 318

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Analyze

Problem 1301

Problem 1302

Problem 1303

In the figures below △EFG∼△HJK\triangle E F G \sim \triangle H J K△EFG∼△HJK, and EX and HY are medians.2. What is the length of HY?

Problem 1304

Problem 1305

Problem 1306

Problem 1307

Problem 1308

Problem 1309

Problem 1310

Problem 1311

8. −1,−56,0-1,-\frac{5}{6}, 0−1,−65​,0 ⟶><\longrightarrow>\quad<⟶>< \qquad

Problem 1312

y<−4x+6y>14x+4\begin{array}{l} y<-4 x+6 \\ y>\frac{1}{4} x+4 \end{array}y<−4x+6y>41​x+4​Answer (3,9)(3,9)(3,9) (−2,−4)(-2,-4)(−2,−4) (9.5) (−7.9)(-7.9)(−7.9) DeltaMath - Googl...

Problem 1313

Find the xxx - and yyy-intercepts of the graph of the linear equation 3x+6y=243 x+6 y=243x+6y=24.The xxx-intercept is □\square□ □\square□.The yyy-intercept is □\square□ □\square□.

Problem 1314

Problem 1315

Problem 1316

Where is the blue dot on the number line? □\square□

Problem 1317

Dashboard14 Multiple Choice 3.5 points Courses 14/3914 / 3914/39 Calendar-11.4\%−12%-12 \%−12%12%12 \%12% 11.4%11.4 \%11.4%

Problem 1318

−6x+3y=−15y=−7\begin{array}{l}-6 x+3 y=-15 \\ y=-7\end{array}−6x+3y=−15y=−7​

Problem 1319

Graph this inequality: 2x+3y>122 x+3 y>122x+3y>12Plot points on the boundary line. Select the line to switch between solid and dotted. Select a region to shade it.

Problem 1320

Question Given the function f(x)=−ex−8f(x)=-e^{x}-8f(x)=−ex−8 : (a) Determine the domain in interval notation, (b) Determine the range in interval notation, (c) Identify the horizontal asymptote.

Problem 1321

Problem 1322

Problem 1323

Problem 1324

Problem 1325

Problem 1326

Problem 1327

Problem 1328

(2X+)2(X->) f(x) = (2x+1)² (X<>) (X+7)085) FIN) (X+1) FIN 15 HA -ZEE VA ROOTS (x+7) -MUL HOLES SIGN CHART -7-√2 -2-19 SKETCH X+7++ -ENT - - SKE

Problem 1329

Q2. The stereochemistry of the product for the given reaction is? A. cisisomers B. diastereomer C. racemic mixture D. meso Br2CH2Cl2\mathrm{Br}_{2} \mathrm{CH}_{2} \mathrm{Cl}_{2}Br2​CH2​Cl2​ E. transisomers

Problem 1330

Problem 1331

Problem 1332

Which equation represents a line which is perpendicular to x=0x=0x=0 ?Answer Attempt 1 out of 3 y=x−3y=x-3y=x−3 x=−4yx=-4 yx=−4y Submit Answer x=5x=5x=5 y=−6y=-6y=−6

Problem 1333

2. Error Analysis Raul has 32.4 milliliters of solution. He uses 0.1 milliliter of solution for each experiment. Paul states that he can complete 3.24 trials using all of his solution. How do you respond to him?

Problem 1334

a true5 If line ppp is a perpendicular bisector for △ABC\triangle A B C△ABC, what are two conclusions you can draw.

Problem 1335

Problem 1336

Problem 1337

Problem 1338

y=5x+1y=−2x−8\begin{array}{l}y=5 x+1 \\ y=-2 x-8\end{array}y=5x+1y=−2x−8​

Problem 1339

20x−5y=54x−y=1\begin{array}{l}20 x-5 y=5 \\ 4 x-y=1\end{array}20x−5y=54x−y=1​

Problem 1340

Problem 1341

Sports American football fields measure 100 yards long between the end zones, and are 531353 \frac{1}{3}5331​ yards wide. Is the length of the diagonal across this field more or less than 120 yards? Explain. \qquad

Problem 1342

Problem 1343

Problem 1344

Select all the true statements. A. The slope of mmm is −25-\frac{2}{5}−52​. B. The slope of qqq is −52-\frac{5}{2}−25​. C. The slope of nnn is 25\frac{2}{5}52​. D. The slope of ppp is −52-\frac{5}{2}−25​. E. The slope of ppp is the negative reciprocal of the slope of qqq.

Problem 1345

In which number does the value of the digit 7 represent 10 times the value of the digit 7 in 7,000?A 23,078

Problem 1346

In an acute triangle, the orthocenter will be located '

Problem 1347

Problem 1348

Problem 1349

Problem 1350

19. Discuss the symmetry for each of the following equations. (a) y=1xy=\frac{1}{x}y=x1​ (b) y=∣x∣y=|x|y=∣x∣ (c) y=x3y=x^{3}y=x3 (d) y=xy=\sqrt{x}y=x​

Problem 1351

Problem 1352

Problem 1353

Problem 1354

Problem 1355

Problem 1356

Problem 1357

Problem 1358

In the figures below $\triangle E F G \sim \triangle H J K$ , and EX and HY are medians.
2. What is the length of HY?

8. $-1,-\frac{5}{6}, 0$ $\longrightarrow>\quad<$ $\qquad$

$\begin{array}{l} y<-4 x+6 \\ y>\frac{1}{4} x+4 \end{array}$
Answer $(3,9)$ $(-2,-4)$ (9.5) $(-7.9)$ DeltaMath - Googl...

Find the $x$ - and $y$ -intercepts of the graph of the linear equation $3 x+6 y=24$ .
The $x$ -intercept is $\square$ $\square$ .
The $y$ -intercept is $\square$ $\square$ .

Where is the blue dot on the number line? $\square$

Dashboard
14 Multiple Choice 3.5 points Courses
$14 / 39$ Calendar
-11.4\%
$-12 \%$
$12 \%$ $11.4 \%$

$\begin{array}{l}-6 x+3 y=-15 \\ y=-7\end{array}$

Graph this inequality: $2 x+3 y>12$
Plot points on the boundary line. Select the line to switch between solid and dotted. Select a region to shade it.

Question Given the function $f(x)=-e^{x}-8$ : (a) Determine the domain in interval notation, (b) Determine the range in interval notation, (c) Identify the horizontal asymptote.

Q2. The stereochemistry of the product for the given reaction is? A. cisisomers B. diastereomer C. racemic mixture D. meso $\mathrm{Br}_{2} \mathrm{CH}_{2} \mathrm{Cl}_{2}$ E. transisomers

Which equation represents a line which is perpendicular to $x=0$ ?
Answer Attempt 1 out of 3 $y=x-3$ $x=-4 y$ Submit Answer $x=5$ $y=-6$

a true
5 If line $p$ is a perpendicular bisector for $\triangle A B C$ , what are two conclusions you can draw.

$\begin{array}{l}y=5 x+1 \\ y=-2 x-8\end{array}$

$\begin{array}{l}20 x-5 y=5 \\ 4 x-y=1\end{array}$

Sports American football fields measure 100 yards long between the end zones, and are $53 \frac{1}{3}$ yards wide. Is the length of the diagonal across this field more or less than 120 yards? Explain. $\qquad$

Select all the true statements. A. The slope of $m$ is $-\frac{2}{5}$ . B. The slope of $q$ is $-\frac{5}{2}$ . C. The slope of $n$ is $\frac{2}{5}$ . D. The slope of $p$ is $-\frac{5}{2}$ . E. The slope of $p$ is the negative reciprocal of the slope of $q$ .

In which number does the value of the digit 7 represent 10 times the value of the digit 7 in 7,000?
A 23,078

19. Discuss the symmetry for each of the following equations. (a) $y=\frac{1}{x}$ (b) $y=|x|$ (c) $y=x^{3}$ (d) $y=\sqrt{x}$

Jen sold $\frac{5}{8}$ of the bracelets she made. Sam sold $\frac{7}{10}$ of the bracelets she made. Who sold the greater fraction of bracelets?

Find the coordinates of the vertex for the parabola defined by the given quadratic function. $f(x)=2 x^{2}-4 x+1$
The vertex is $\square$ (Type an ordered pair.)