Question

Multiply (2.0 • 10^–4) • (3.1 • 10^–20). Express the answer in scientific notation.

Answer 1

I got 6.2 *10^80. AM I right @CShrix ?

Answer 2

\[(2 \times 10^{-4})(3.1 \times 10^{-20})\]\[6.2 \times 10^{-4-20}=6.2 \times 10^{-24}\]

Answer 3

Don't forget, whenever you multiply exponents with the same base, you add them!!

\[\huge x^2 \cdot x^4=x^6\]So\[\huge 10^{-20} \cdot 10^{-4}=10^{-24}\]

Answer 4

thank you very much!!! I wish I knew how to use the equation thing better on os:{

Answer 5

Haha, no worries :)