jwebster jwebster

03-11-2017
Mathematics

contestada

which of the following expressions are equivalent to m/n^7?
A. -mn^7
B. mn^-7
C. -m/n^7
D. -m/n^-7

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apologiabiology apologiabiology

03-11-2017

I think you mean [tex]\frac{m}{n^7}[/tex]
remember
[tex]\frac{1}{x^m}=x^{-m}[/tex]
so
[tex]\frac{m}{n^7}=(m)(\frac{1}{n^7})=(m)(n^{-7})=mn^{-7}[/tex]
answer is B

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