## Intermediate Algebra for College Students (7th Edition)

$x=1.37\times10^{-15}$
$x=8.4\times10^{-16}+5.3\times10^{-16}$ $x=(8.4+5.3)\times10^{-16}$ $x=13.7\times10^{-16}$ Write 13.7 in scientific notation. $13.7=1.37\times10^{1}$ $x=1.37\times10^{1}\times10^{-16}=1.37\times10^{-15}$