Question

7.89x10^-6+2.35x10^-8

Answer 1

`7.89 * {10}^( - 6) + 2.35 * {10}^( - 8) = 7.9135 * {10}^( - 6)`

Answer 2

`7.89 * 10^(-6) + 2.35 * 10^(-8) =`

To add numbers in scientific notation, you need the exponents of 10 to be the same. We will convert the -8 to -6.

`=7.89 * 10^(-6) + 2.35 * 10^(-2) * 10^(-6)`

`=7.89 * 10^(-6) + 2.35 * 0.01 * 10^(-6)`

`=7.89 * 10^(-6) + 0.0235 * 10^(-6)`

`=7.9135 * 10^(-6)`