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23-09-2021
Mathematics

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If b=3 then b^-2 is equivalent to____. A. 9 B. 1/9 C. -9 D. -6

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23-09-2021

Answer:

The choice B. 1/9

Step-by-step explanation:

[tex] {b}^{ - 2} \\ \\ = {3}^{ - 2} \\ \\ = \frac{1}{ {3}^{2} } \\ \\ = \frac{1}{9} [/tex]

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