Solve the problem.Solve S = x2 + y2 - 8x + 10y - 4 for x.
A. x = 4 ± 
B. x = 4 ± 
C. x = 4 ± 
D. x = 4 ± 
Answer: C
Mathematics
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Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 
A. - 
; - 
B. 
; 
C. 
; 
D. - 
; - 
Mathematics
Evaluate.log21
A. 0 B. 2 C. 1 D. -1
Mathematics
Evaluate the integral by changing the order of integration in an appropriate way.
A. 4 ln 3 (1 - sin 9) B. 2 ln 3 (1 - cos 9) C. 2 ln 3 (1 - sin 9) D. 4 ln 3 (1 - cos 9)
Mathematics
Solve the problem.The radius, r, of a right circular cone can be found using the formula 
where V is the volume and h is the height. If the volume is 1484 cubic inches and the height is 3 inches, what is the radius? (Use 3.14 for ?, and round your answer to the nearest tenth of an inch.)
A. 21.7 in. B. 10.9 in. C. 22.8 in. D. 12.6 in.
Mathematics