Simplify the expression. Write the result using positive exponents only.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the spherical coordinate integral.
A.
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B.
?C.
?D.
?
Mathematics
Solve the problem.A pendulum traces out a path over the x, y-plane described by 
. Determine the center and the radius of the circle by completing the square. Round each number in your answer to the nearest hundredth.
A. (-41.16, 27.51), r = 82.65 B. (-41.16, 27.51) r = 1366.20 C. (-13.72, 9.17), r = 16.53 D. (13.72, -9.17), r = 273.24
Mathematics
Find the annual amount of depreciation using the straight-line method. Round to the nearest dollar.Cost:$350Estimated life:3 yearsEstimated scrap value:$70
A. $117 B. $70 C. $93 D. $23
Mathematics
Give the equations of any vertical asymptotes for the graphs of the rational functions.f(x) = 
A. x = 3 B. x = 1, x = -1 C. x = -3 D. None
Mathematics