Perform the indicated operation(s), whenever possible.Let A = 
and B = 
. Find A + B.
A. 
B. 
C. 
D. 
Answer: C
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Factor.x3 - 27
A. (x - 3)(x2 + 3x + 9) B. (x + 27)(x2 - 1) C. (x - 3)(x2 + 9) D. (x + 3)(x2 - 3x + 9)
Set up the iterated integral for evaluating 
over the given region D. DD is the solid right cylinder whose base is the region between the circles 
and 
and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
For the given functions f and g, find the requested function and state its domain.f(x) = x + 2; g(x) = 9x2Find f + g.
A. (f + g)(x) = 9x2 - x - 2; all real numbers B. (f + g)(x) = -9x2 + x + 2; all real numbers C. (f + g)(x) = 9x2 + x + 2; all real numbers D. (f + g)(x) = 9x2 + x + 2; {x|x ? -2}
Provide an appropriate response.In the linear equation, y = 10 - 5x, 10 is the 
of the equation.
A. domain B. y-intercept C. slope D. x-intercept