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## anonymous 3 years ago Which of the following is an equivalent representation of 5^-4? Choices: 1/256 1/64 1/16 1/625

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1. anonymous

Any negative exponent means it's a reciprocal, i.e.: $a^{-b}=\frac{1}{a^b}$So: $5^{-4}=\frac{1}{5^4}$Try it, now.

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