Question

How do you evaluate `5.1\times 10^ { 8} + 2.9\times 10^ { 8}`?

Answer 1

`5.1xx10^8 + 2.9xx10^8=color(blue)(8.0xx10^8`

Explanation:

Simplify:

`5.1xx10^8 + 2.9xx10^8`

Since both numbers have the same exponent, you can simply add the coefficients.

`5.1xx10^8 + 2.9xx10^8=`

`8.0xx10^8`