Solve the problem.A ball is kicked upward with an initial velocity of 32 feet per second. The ball's height, h (in feet), from the ground is modeled by 
where t is measured in seconds. What is the practical domain in this situation?
A. 0 ? t ? 1
B. 0 ? t ? 2
C. All real numbers
D. 0 ? t ? 8
Answer: B
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Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 4 sin t, y = 4 cos t; 0 ? t ? 2?
A. y2 - x2 = 16; -? < x < ?
B. y = x2 - 9; -2 ? x ? 2
C. x2 + y2 = 16; -4 ? x ? 4
D. y = 
= 16; -? < x < ?
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
1/2
A. xy1/2
B. 
C. xy
D. xy2
Solve graphically.
x - 2 ? 1 - x
A. {x|x ? 2} or [2, ?) B. {x|x > 2} or (2, ?) C. {x|x < 2} or (-?, 2) D. {x|x ? 2} or (-?, 2]
Solve the problem.An employee was paid $5189 during the first half of last year. During the second half he was paid 
How much more was his income during the second half?
A. $44,406 B. $44,417 C. $34,039 D. $34,028