## Algebra 1

$1.5 \times 10^{-6}$
$\dfrac{a^m}{a^n}=a^{m-n}, a\ne0$ Divide the corresponding parts while using the rule above to obtain: $=\dfrac{4.65}{3.1} \times \dfrac{10^{-4}}{10^{2}} \\=1.5 \times 10^{-4-2} \\=1.5 \times 10^{-6}$