Find the inverse of the function.f(x) =
A. f-1(x) = x - 7
B. f-1(x) = 
C. f-1(x) = x3 + 49
D. f-1(x) = x3 - 7
Answer: D
Mathematics
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A. {
x > 4}
B. {
x < 4}
C. {
x ? -6}
D. {
x ? -6}
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A. 160 B. 840 C. 58 D. 268
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Simplify the expression involving rational exponents.(- 25)1/2
A. - 5 B. Not a real number C. 5 D. -2.5
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Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.2x = 20
A. 4.32 B. 0.39 C. 0.23 D. 2.08
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