Find the area of the region specified by the integral(s).
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.The function A described by A(r) = 4?r2 gives the surface area of a sphere with radius r. Find the area when the radius is 1 in.
A. 37.7 in.2 B. 3.14 in.2 C. 4 in.2 D. 12.57 in.2
Mathematics
Find the perimeter.
A. 620 ft B. 15,376 ft C. 744 ft D. 635 ft
Mathematics
Find (a) the opposite and (b) the absolute value of the number.
A. (a) - 
(b) 
B. (a) 
(b) 
C. (a) - 
(b) - 
D. (a) 
(b) - 
Mathematics
Graph the function.y = -cot x
A. 
B. 
C. 
D. 
Mathematics