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8_murik_8 [283]
3 years ago
7

9 to the power of -4 times 9 to the third power

Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer:

0.11111111111 or 0.11 repeating decimal

zalisa [80]3 years ago
4 0

\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 9^{-4}\cdot 9^3\implies 9^{-4+3}\implies 9^{-1}\implies \cfrac{1}{9}

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