Write the expression in exponential form. Assume that all variables represent positive real numbers. 
A. x-1/3
B. x-3
C. x1/3
D. x3
Answer: C
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Multiply the expressions.(a - 11)(a + 11)
A. a2 - 121 B. a2 + 22a - 121 C. a2 - 22a - 121 D. a2 - 22
Use the properties of equality to solve the equation.
x = - 
A. - 
B. - 
C. - 
D. - 
Find all solutions of the equation. Express the solution in radians.tan x = 
A. 
+ n?
B. 
+ 2n? or 
+ 2n?
C. 
+ n?
D. 
+ 2n? or 
+ 2n?
A movie theater would like to use a survey to determine which factors are most important to those who come to their theater. Which of the following procedures would be most appropriate for obtaining a statistically unbiased sample? ? A. Survey a random selection of people passing by the theater in the mall in front of the theater. B. Survey a random selection of shoppers in the mall. C. Survey a random selection of people who are leaving the theater after watching a movie. D. Induce people to answer survey questions by offering discount coupons for various city events, including the movie theater.
What will be an ideal response?