[tex]\tt(1.67 \times 10 ^ { -7 } ) \div (9.11 \times 10 ^ { -3 } )[/tex]
To divide exponents with the same base, we must subtract the exponents from the numerator & the denominator.
[tex]\tt\frac{1.67}{9.11\times 10^{4}} [/tex]
[tex]\tt\frac{1.67}{9.11\times 10000} [/tex]
[tex]\tt\frac{1.67}{91100} [/tex]
[tex]\boxed{\tt\frac{167}{9110000}\approx 0.000018332}[/tex]
So, 0.000018332 = 1.8832×10^(−5)
Hope it helps ⚜
