Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = - 
, x ? 0
A. f-1(x) = 
B. f-1(x) = - 
C. f-1(x) = -2x
D. f-1(x) = - 
Answer: B
Mathematics
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Use a calculator to find the value of the acute angle ? to the nearest degree.tan ? = 13.2894
A. 24° B. 86° C. 1° D. 88°
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Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = S - r
B. h = 
C. h = 2?(S - r)
D. h = 
- 1
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Find the least common denominator for the set of fractions.
, 
A. 50 B. 25 C. 250 D. 35
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Write the expression in the standard form a + bi.
2
A. - 
B. i
C. 
D. -i
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