Question

(7 x 10^-5) x (5 * 10^-8)= ?x 10^

Answer 1

1) Let's calculate that. Start by multiplying the factors 7, and 5.

`\begin{gathered} 7\cdot10^(-5)\text{ x 5 }\cdot10^(-8)= \\ 35\cdot10^(-13) \end{gathered}`

After that, we use the property of the exponents when multiplying. Repeat the base and then add the exponents -8 + (-5) = -8 -5 = -13.