Practice Exam Answers

Which term, when added to the given polynomial, will change the end behavior of the graph? y is equal to 14 x to the 8th power minus 6 x to the 5th power minus 2 x to the 4th power minus 10

The volume of a rectangular prism is given by the formula cap v is equal to l w h , where l is the length of the prism, w is the width, and h is the height. Which expression represents the volume of the following rectangular prism? Expand Image

A textbook company states that the average time a student needs to take a quiz from its book is 30 minutes with a standard deviation of 3 minutes. A teacher using the book is not sure that this is correct for her classes and wants to check. She collects data on 10 random students and finds that the average time to take the quiz was only 25 minutes. As a result, the teacher performs a two-tailed hypothesis test with a significance level of 5 percent Which conclusion is valid based on the results of the test?

A simple random sample of 85 is drawn from a normally distributed population, and the mean is found to be 146 , with a standard deviation of 34 Which of the following values is outside the 99 percent confidence interval for the population mean? Use the table to help you answer the question. Confidence Level 90 percent 95 percent 99 percent z to the ast th power -score 1 point 6 4 5 1 point 9 6 2 point 5 8 Remember, the margin of error, ME , can be determined using the formula ME is equal to the fraction with numerator z times s and denominator square root of n

Voluntary sampling is one type of sampling method that is not probability based. This means that

Mrs. Gomes found that 40 percent of students at her high school take chemistry. She randomly surveys 12 students. What is the probability that at most 4 students have taken chemistry? Round the answer to the nearest thousandth. cap p times k successes is equal to n cap c sub k p to the k th power open paren 1 minus p close paren raised to the n minus k power n cap c sub k is equal to the fraction with numerator n factorial and denominator open paren n minus k close paren factorial times k factorial

A supervisor finds the mean number of miles that the employees in a department live from work. He finds line segment x is equal to 29 and s is equal to 3 point 6 Which statement must be true?

Jerome solved the equation by graphing. the log base 2 of x plus log sub 2 of open paren x minus 2 close paren is equal to 3 Which of the following shows the correct system of equations and solution?

How might the graph be considered misleading?