Question

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Answer 1

Resposta:

-0,000000012

Explicação passo a passo:

$4\cdot \:10^{-7}\left(-3\cdot \:10^{-2}\right)$

$=-4\cdot \:10^{-7}\cdot \:3\cdot \:10^{-2}$

$=-12\cdot \:10^{-7}\cdot \:10^{-2}$

$=-12\cdot \:10^{-7-2}$

$=-12\cdot \:10^{-9}$

$=-12\cdot \frac{1}{10^9}$

$=-\frac{1\cdot \:12}{10^9}$

$=-\frac{12}{10^9}$

$=-\frac{3}{5^9\cdot \:2^7}$

$=-\frac{3}{250000000}$

$=-0,000000012$