Solve the problem.The rate of expenditure for maintenance of a particular machine is given by M'(x) = 9x
, where x is time measured in years. Total maintenance costs through the second year are $51. Find the total maintenance function.
A. M(x) = 9(x2 + 5)3/2 - 30
B. M(x) = 3(x2 + 5)3/2 - 30
C. M(x) = 9(x2 + 5)3/2 + 42
D. M(x) = 3(x2 + 5)3/2 + 42
Answer: B
Mathematics
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Set up the iterated integral for evaluating 
over the given region D. DD is the rectangular solid whose base is the triangle with vertices at 
and 
, and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
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Classify the angle as acute, obtuse, straight, or right.
A. Acute B. Right C. Straight D. Obtuse
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Convert the units.263 g = 
kg
A. 0.263 kg B. 26,300 kg C. 0.0263 kg D. 263,000 kg
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Replace the ? by < or >.-1 ? - 10
A. < B. >
Mathematics