Evaluate the following.
A. 0
B. 
C. 1
D. 
E. none of these
Answer: A
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = -4 sin ?
A. C(4, ?), radius = 4 B. C(4, 3?/2), radius = 4 C. C(2, 3?/2), radius = 2 D. C(2, ?/2), radius = 2
Solve the problem.The number of visitors to a tourist attraction (for the first few years after its opening) can be approximated by 
where x represents the number of months after the opening of the attraction. Find the number of visitors 4 months after the opening of the attraction.
A. 90 visitors B. 54 visitors C. 52 visitors D. 70 visitors
Graph the solution set of the system of inequalities or indicate that the system has no solution.
A. 
B. 
C. 
D. 
Find the composite function for the given functions and state the domain. f ? g for f(x) = x2 - 16 and g(x) = 
A. x - 16, for x ? 0
B. 
, for (-?, -4] ? [4, ?)
C. 
- 16, for all x
D. x - 4, for x ? 0