Question

Find the value of $m$: $0.0000000000085$ = $8.5\times {10}^{-m}$

Answer 1

$0.0000000000085$$=\frac{85}{1000000000000}$

$=\frac{85}{{10}^{13}}$

$=\frac{8.5\times 10}{{10}^{13}}$

$=8.5\times 10\times {10}^{-13}$

$=8.5\times {10}^{-12}$

Thus, $m=12$