Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = x2 + y2; R = {(x, y): 0 ? x ? 1, 0 ? y ? 1}
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= 
cotn-1 x - 
B. 
= 
cotn-1 x + 
C. 
= 
cotn-2 x - 
D. 
= - cotn-1 x + 
Mathematics
Solve using the addition principle and/or the multiplication principle.28 = 10x - 2
A. 24 B. 4 C. 20 D. 3
Mathematics
Solve the inequality, then graph the solution.7t + 5 ? 5t + 1
A. (-?, -2]
B. [2, ?)
C. (-?, 2]
D. [-2, ?)
Mathematics
Solve the problem.The stock market gained 17 points on Tuesday and lost 54 points on Wednesday. It had closed on Monday at 2563 points. Where did the market close on Wednesday?
A. 2600 points B. 2492 points C. 2634 points D. 2526 points
Mathematics