Determine the number of subsets of the set.A set of 4 elements
A. 16
B. 8
C. 17
D. 10
Answer: A
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Find the average value of 
over the given region.
z4 over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Find an equation for the sphere with the given center and radius.Center (-3, 3, 0), radius = 1
A. x2 + y2 + z2 - 6x - 6y = -17 B. x2 + y2 + z2 + 6x + 6y = -17 C. x2 + y2 + z2 - 6x + 6y = -17 D. x2 + y2 + z2 + 6x - 6y = -17
Solve the problem.The square photo is x inches by x inches and is bordered by a matting that is 1 inch wide. Write the polynomial that calculates the area of the entire framed picture. 
A. (2x + 1) in.2 B. (x2 + 2x + 1) in.2 C. (x2 + 1) in.2 D. (x2 + 2x) in.2
Determine whether the equation defines y as a function of x. y = 5x2 - 2x + 6
A. function B. not a function