Answer
$8.37\times10^{-15}$
Work Step by Step
The given expression, $
(2.7\times10^{-24})(3.1\times10^9)
,$ simplifies to
\begin{align*}\require{cancel}
&
(2.7\times3.1)(10^{-24}\times10^9)
\\&=
(8.37)(10^{-24}\times10^9)
\\&=
(8.37)(10^{-24+9})
&(a^m\cdot a^n=a^{m+n})
\\&=
(8.37)(10^{-15})
\\&=
8.37\times10^{-15}
.\end{align*}
Hence, the expression $(2.7\times10^{-24})(3.1\times10^9)$ simplifies to $8.37\times10^{-15}$.
