Simplify by first converting to rational exponents. Assume that all variables represent positive real numbers.
? 
A. 
B. 
C. 
D. 
Answer: C
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Simplify: (-3-j)²
What will be an ideal response?
Find the value of the determinant.
A. 55 B. -55 C. -10 D. 71
Solve.The distance, in feet, that a car travels down the side of a mountain in each consecutive second is modeled by a sequence whose general term is an = 32n - 20, where n is the number of seconds. Find the distance the car travels in the fifth second.
A. 108 ft B. 180 ft C. 140 ft D. 160 ft
Solve the problem.Sales of CD players in a particular U.S. market are shown in the given table for various years. Let s be the sales of CD players (in thousands) for the year that is t years since 1990. A quadratic model for the sales is 
According to the model, how many CD players were sold in 1997? Is this number an underestimate, an overestimate, or neither? CD Player Sales
A. 185 thousand; neither B. 275 thousand; overestimate C. 275 thousand; underestimate D. 200 thousand; overestimate