Find the algebraic expression that is equal to sec ? - cos(-?).
? 

A.
B.
C.
D. tan2 ?
E.

Answer: E

Mathematics

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Evaluate the improper integral.

A. 168 B. 16 C. 28 D. 112

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Mathematics

Solve the problem.The rate of expenditure on a particular machine is given by dM/dx = 9x, where x is time measured in years. Maintenance costs for the second year are $74. Find the total maintenance function, M.

A. M = 3(x2 + 5)3/2 + 65 B. M = 9(x2 + 5)3/2 - 7 C. M = 9(x2 + 5)3/2 + 65 D. M = 3(x2 + 5)3/2 - 7

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Mathematics

Solve the equation. - 8 = 0

A. {8}
B.
C. {64}
D. ?

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Mathematics

The graph of the given function is drawn with a solid line. The graph of a function, g(x), transformed from this one is drawn with a dashed line. Find a formula for g(x).f(x) = 

A. g(x) = 
B. g(x) = 
C. g(x) = 5x3
D. g(x) =  - 5

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Mathematics