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3 October, 19:37

Which of the following is equal to 1/5^-2

A. 1/25

B.-1/25

C. 25

D. 1/7

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Answers (1)
  1. 3 October, 19:53
    0
    C. 25

    Step-by-step explanation:

    The applicable rule of exponents is ...

    a^b = 1/a^-b

    Matching this pattern to your expression, you see that ...

    a = 5

    b = 2

    Then ...

    1/5^-2 = 5^2 = 25
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