Hi guys im stuck on this maths question (2/5)^-3

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asked Dec 20, 2022 189k views

4 votes

Hi guys im stuck on this maths question

(2/5)^-3

Mathematics
college

FarrEver asked

by FarrEver

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2 Answers

6 votes

Answer:

15.625

Explanation:

Sean Smyth answered Dec 23, 2022

by Sean Smyth

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6 votes

Answer:

$((2)/(5) ) {}^( - 3) \\ = ((a)/(b) ) {}^( - x) = ((b)/(a) ) {}^(x) \\ so \: \: \: \: \: \: ((2)/(5) ) {}^( - 3) \\ = ((5)/(2) ) {}^(3) \\ = \frac{5 {}^(3) }{2 {}^(3) } \\ \: = \: (125)/(8)$

Karol Berezicki answered Dec 24, 2022

by Karol Berezicki

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