Solve the problem.A swimming pool has a rectangular base 12 ft long and 24 ft wide. The sides are 5 ft high, and the pool is half full of water. How much work will it take to empty the pool by pumping the water out over the top of the pool? Assume that the water weighs 62.4 lb/ft3. Give your answer to the nearest ft ? lb.
A. 168,480 ft ? lb
B. 224,640 ft ? lb
C. 84,240 ft ? lb
D. 112,320 ft ? lb
Answer: A
Mathematics
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Solve the problem.Show that the midpoint of the hypotenuse of a right triangle is equidistant from all three vertices. [Hint: See the figure below. Show that 
= 
.] 
What will be an ideal response?
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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = -9xz2i + 2yj + 3z3k; D: the solid wedge cut from the first quadrant by the plane 
and the elliptic cylinder x2 + 9y2 = 16
A. 
B. 
C. 
D. 
Mathematics
Write as a decimal.600%
A. 0.6 B. 6.01 C. 60 D. 6
Mathematics
Find the limit, if it exists.
(x3 + 5x2 - 7x + 1)
A. 29 B. 0 C. Does not exist D. 15
Mathematics