N/A — Exam Answers

Which expression is equivalent to cube root of x to the 5th power y ?

Aron flips a penny 9 times. Which expression represents the probability of getting exactly 3 heads? 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 k factorial

Which expression is equivalent to open paren 256 x to the 16th power close paren raised to the 1 fourth power ?

Which function is shown in the graph?

Why is the graph misleading?

The scatterplot shows the number of guests who visited a hotel pool and the temperature on those days. Estimate the location of the line of best fit. About how many guests will visit the pool when the temperature is 85 times degree F ?

If negative 1 is a root of f of x , which of the following must be true?

If 9 i is a root of the polynomial function f of x , which of the following must also be a root of f of x ?

What is the quotient of open paren x cubed plus 3 x squared minus 4 x minus 12 close paren divided by open paren x squared plus 5 x plus 6 close paren ?

Suppose the mean of a normally distributed population is 300 , and 200 simple random samples are drawn from the population. At a 68 percent confidence level, (one standard deviation from the mean), about how many of the samples’ confidence intervals would you expect to contain the population mean?

Dylan uses the expressions open paren x squared minus 2 x plus 8 close paren and open paren 2 x squared plus 5 x minus 7 close paren to represent the length and width of his bedroom. Which expression represents the area l w of Dylan’s room?

What value of g makes the equation true? open paren x plus 7 close paren times open paren x minus 4 close paren is equal to x squared plus g x minus 28

One factor of f of x is equal to 4 x cubed minus 4 x squared minus 16 x plus 16 is open paren x minus 2 close paren What are all the roots of the function? Use the Remainder Theorem.

A set of data has a mean of 0 point 5 and a standard deviation of 0 point 0 1 A data point of the set has a z -score of 2 point 5 What does a z -score of 2 point 5 mean?

A simple random sample of 50 adults was surveyed, and it was found that the mean amount of time that they spend surfing the Internet per day is 54 point 2 minutes, with a standard deviation of 14 point 0 minutes. What is the 99 percent confidence interval open paren z - score is equal to 2 point 5 8 close paren for the number of minutes that an adult spends surfing the Internet per day? 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

Isla is dividing 3 x cubed plus x squared minus 12 x minus 4 by x plus 2 using a division table. Isla's Work Quotient Divisor 3 x squared negative 5 x negative 2 x 3 x cubed negative 5 x squared negative 2 x plus 2 6 x squared cap A cap b What are the missing values in the table?

Marleny is creating a game of chance for her family. She has 5 different colored marbles in a bag: blue, red, yellow, white, and black. She decided that blue is the winning color. If a player chooses any other color, they lose 2 points. How many points should the blue marble be worth for the game to be fair?

What is the solution of the log of open paren t minus 3 close paren is equal to the log of open paren 17 minus 4 t close paren ?