Evaluate.x + y, for x = 7 and y = -8
A. -1
B. -56
C. -15
D. 15
Answer: A
Mathematics
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Find the sum.
A. 
B. 
C. 
D. 79715
Mathematics
Use a calculator to approximate the area of the surface generated when the given curve is revolved about the x-axis. Round to two decimal places when necessary.y = x4 on [0, 1]
A. 0.55 B. 3.44 C. 1.47 D. 0.23
Mathematics
Find the expression that is equivalent to the given rational expression.- 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If (1, -2) is the endpoint of a line segment, and (3, -7) is its midpoint, find the other endpoint.
A. (5, 3) B. (-3, 8) C. (-9, 2) D. (5, -12)
Mathematics