Find the inverse of the function.f(x) = 
, x ? -7
A. f-1(x) = -x2 + 7, x ? 0
B. Not a one-to-one function
C. f-1(x) = x2 - 49, x ? 0
D. f-1(x) = x2 - 7, x ? 0
Answer: D
Mathematics
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Find the indicated decile or percentile.The weights (in pounds) of 18 randomly selected adults are given below. Find the fourth decile , D4.
A. 146 B. 145 C. 144 D. 143
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Solve the equation.log3x = 4
A. x = 
B. x = 43
C. x = 34
D. x = 3?4
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Find the limit if it exists.
6x(x + 2)(x - 2)
A. -2880 B. 2880 C. -4800 D. -1728
Mathematics
Provide an appropriate response.Rationalize the denominator: 
Fill in the blank(s) with the appropriate word(s).
Mathematics