Solve the problem.Peter must practice the piano  per week. He has already practiced  How many more hours does he need to practice?

A.  hr
B. 1 hr
C. 7 hr
D. 5 hr


Answer: D

Mathematics

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Factor.a2 - 5ab - 36b2

A. (a - 4b)(a + 9b) B. (a + 4b)(a - 9b) C. (a - 4b)(a + b) D. prime

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Find the inverse of the function.f(x) = e-x + 2

A. f-1(x) = -ex - 2
B. f-1(x) = -ln(x - 2)
C. f-1(x) = ln 2 - ln x
D. f-1(x) = ex - 

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Identify the radicand.xy2

A.
B. xy2
C. x + 6
D.

Mathematics