Find the area of the specified region.Inside the circle r = -8 cos ? and outside the circle r = 4
A. 8?
B. 
?
C. 
(4? - 3
)
D. 
(2? + 3
)
Answer: D
Mathematics
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Simplify the expression.14441/2
A. 76 B. 38 C. 152 D. 19
Mathematics
Determine the amplitude or period as requested.Period of y = 3 cos 
x
A. 
B. 3
C. 4?
D. 
Mathematics
Find the indicated probability.f(x) = e-x; [0, ?), P(x ? 7)
A. 0.0009 B. 0 C. 00.9991 D. The function f(x) is not a probability density function.
Mathematics
Evaluate the expression below. ? 4-1 ?
A. 
?
B.
?C. 4
D.
?E. 1024
Mathematics