Find the area of the surface generated when the given curve is revolved about the y-axis.y = 
, for 6 ? x ? 8
A. 
(173/2 - 103/2)
B. 4?(173/2 - 103/2)
C. 
(93/2 - 83/2)
D. 
(173/2 - 103/2)
Answer: A
Mathematics
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Provide an appropriate response.The definite integral represents area only if the function involved is ? at every x-value in the interval 
A. rational B. positive C. nonnegative D. negative
Mathematics
Use the given functions to find the requested function.f(x) = 4x + 8, g(x) = 3x2Find (fg)(x).
A. 3x2 + 4x + 8 B. 12x + 24 C. 12x2 + 24x D. 12x3+ 24x2
Mathematics
Find the indicated partial sum for the given sequence.s10, 92, 3, -86, -175, . . .
A. 3545 B. 4925 C. -3545 D. -3085
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics