Question

question 8
divide
8.4 x 10^-4 ÷ 4.2 x 10 ^-2
to type an exponent use the caret (^) for example:
10 to the third power = 10^3

Explanation:

Step1: Separate coefficient and exponent terms

$\frac{8.4}{4.2} \times \frac{10^{-4}}{10^{-2}}$

Step2: Calculate coefficient division

$\frac{8.4}{4.2} = 2$

Step3: Simplify exponent terms

$\frac{10^{-4}}{10^{-2}} = 10^{-4 - (-2)} = 10^{-2}$

Step4: Multiply results

$2 \times 10^{-2}$

Answer:

$2 \times 10^{-2}$ (or $0.02$)