Question

Evaluate `(4.9×10−8) / (7.0×10−3)`. How do you express the answer in scientific notation?

Answer 1

`7xx10^(-6)`

Explanation:

Evaluate each part separately and remember that indices subtract upon division.

`(4.9/7.0) xx 10^(-8-(-3))`

`0.7 xx 10^(-5) = 7xx10^(-6)`