# How do you write 9.3 xx 10 ^-5 in standard notation?

$9.3 \times {10}^{- 5} = 0.000093$
$\textcolor{w h i t e}{\text{XXX}} a . b \times {10}^{k}$
$k$ indicates the number of places to the right the decimal point needs to be moved to write the number in normal form.
When $\textcolor{b l a c k}{k < 0}$ then $\left\mid k \right\mid$ is the number of places to the left the decimal point needs to be moved.