Solve the problem.Edwin has a board that is 20 feet long. He wants to cut the board into pieces that are 2.5 feet long. How many 
pieces will he get from the large board?
A. 9 pieces
B. 7 pieces
C. 8 pieces
D. 80 pieces
Answer: C
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Evaluate the spherical coordinate integral.
A. 
?(15? - 16)
B. 
?(15? - 8)
C. 
?(15? - 8)
D. 
?(15? - 16)
Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__10615191636__f1q36g7.jpg" alt="" style="vertical-align: -4.0px;" /> 
Rwhere R is the parallelepiped bounded by the planes 
A. 64
B. 144
C. 32
D. 288
The sequence is defined recursively. Write the first four terms of the sequence.a1 = 2 and an = an-1 - 3 for n ? 2
A. -3, -6, -9, -12 B. 2, -1, -4, -7 C. 2, 1 , -2 , -5 D. 2, 5 , 8 , 11
Solve the problem.Find the center of mass of the region of density 
bounded by the paraboloid 
and the xy-plane.
A. 
= 0, 
= 0, 
= 6
B. 
= 0, 
= 0, 
= 2
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 3