Evaluate.Evaluate x3 for x = -8.
A. -24
B. 512
C. -512
D. 24
Answer: C
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Evaluate the integral.
A. 
B. 11
C. 
D. 
Solve the application problem.One way to gauge whether a person may need to gain or lose weight is to use the body-mass index, which is calculated using the formula 
, where w is the weight in pounds and h is the height in inches. Doctors recommend that body-mass index values fall between 19 and 25. If a person is 5 ft 8 in. tall and has a body-mass index of 24, what should his or her weight be? (Round to the nearest pound.)
A. 157 lb B. 148 lb C. 115 lb D. 155 lb
Solve the variation problem.The weight of a liquid varies directly as its volume. If the weight of the liquid in a cubical container 4 cm on a side is 128 g, find the weight of the liquid in a cubical container 5 cm on a side.
A. 250 g B. 10 g C. 105 g D. 125 g
Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. 
- 2
B. (z - 2)2
C. z - 2
D. z - 