Question

question 7
divide $6.4 \times 10^{-6} \div 2.2 \times 10^{-2}$
to type an exponent use the caret (^) for example:
10 to the third power = 10^3

Explanation:

Step1: Split into coefficient & power terms

$\frac{6.4}{2.2} \times \frac{10^{-6}}{10^{-2}}$

Step2: Calculate coefficient division

$\frac{6.4}{2.2} \approx 2.91$

Step3: Simplify power terms

$\frac{10^{-6}}{10^{-2}} = 10^{-6 - (-2)} = 10^{-4}$

Step4: Combine results

$2.91 \times 10^{-4}$

Answer:

$2.91 \times 10^{-4}$ (or formatted as 2.91e-4 / 2.91^-4 as per the caret instruction)