bryy1
bryy1
30-01-2017
Mathematics
contestada
What is 9 exponent of -2 simplified?
Respuesta :
aggie5
aggie5
30-01-2017
C is the answer because when you square nine you get 81 but you can't have a negative so you have to put a one over it as he numerator
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apologiabiology
apologiabiology
30-01-2017
remember
[tex]x^{-m}= \frac{1}{x^m} [/tex]
so
[tex]9^{-2}= \frac{1}{9^2}= \frac{1}{81} [/tex]
C is the answer
Answer Link
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