Question

4.3 x 10^-3/8.6 x 10^-7
Evaluate and write in scientific notation

Answer 1

\[\frac{4.3 * 10^{-3}}{8.6 * 10^{-7}} = \frac{4.3}{8.6}*10^{-3+7} = \frac{1}{2}*10^{4} = \frac{10}{2}*10^{3} = 5*10^{3} \]

Answer 2

I mean:
\[5.0*10^{3}\]

Answer 3

The 5.0 is actually kind of important.