Question

Express in exponential form:$0.000169$

Answer 1

$0.000169=\frac{169}{1000000}$

$=\frac{169}{{10}^6}$

$=169\times {10}^{-6}$

$=1.69\times {10}^2\times {10}^{-6}$

$=1.69\times {10}^{-4}$