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nexus9112 [7]
3 years ago
6

Can someone please help me??

Mathematics
2 answers:
Anna [14]3 years ago
7 0

Answer:

1) D.

2) A

Step-by-step Explanation:

1) 7^{-2}

= (\frac{1}{7})^2

2) (\frac{2}{3})^{-3}

= (\frac{3}{2})^{3}

prisoha [69]3 years ago
5 0

Answer:

Step-by-step explanation:

a^{-m}=(\frac{1}{a})^{m}\\\\\\1)7^{-2}=(\frac{1}{7})^{2}\\\\\\2)(\frac{2}{3})^{-3}=(\frac{1}{\frac{2}{3}})^{3}\\\\=(\frac{3}{2})^{3}

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