The function f is one-to-one. Find its inverse.f(x) = x3 + 7

A. f-1(x) =  - 7
B. f-1(x) =  + 7
C. f-1(x) = 
D. f-1(x) = 

Answer: D

Mathematics

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Solve the inequality.x2 + 7x ? -3x - 21

A. -3 ? x ? -7
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C. 3 ? x ? 7
D. x ? -  or x ? 

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Graph the rational function.f(x) = 

A.

B.

C.

D.

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Perform the indicated operation. Write the answer without exponents.(7 × 10-4) × (3 × 103) × (3 × 104)

A. 63,000 B. 63 × 10-48 C. 6300 D. 63 × 103

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Find the present value of the ordinary annuity.Payments of $68 made quarterly for  at 5.7% compounded quarterly

A. $2095.08 B. $2062.40 C. $2076.41 D. $2101.38

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