Solve using the addition principle and/or the multiplication principle.2n - 5 = 5

A. 5
B. 12
C. 7
D. 8

Answer: A

Mathematics

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Divide and express the result in standard form.

A. -  - i
B. 1 - i
C. -  + i
D.  - i

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Solve the problem.Mara can type 2080 words in  hr (40 minutes). How many words per minute can she type?

A. 1387 words per min B. 35 words per min C. 78 words per min D. 52 words per min

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Factor.25a2 + 30ab + 9b2

A. (5a - 3b)2 B. (5a + 3b)2 C. (5a + 3b)(5a - 3b) D. Not possible

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Mathematics

Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 

A. f-1(x) = x3 - 8
B. f-1(x) = (x + 8)3
C. f-1(x) = (x - 8)3
D. f-1(x) =  + 8

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Mathematics