3. 7.35 x 10^-7 + 2.16 x 10^-8

1 answer

To add these two numbers together, we first need to convert them to the same base.

7.35 x 10^-7 = 0.000000735
2.16 x 10^-8 = 0.0000000216

Adding these two numbers together, we get:

0.000000735 + 0.0000000216 = 0.0000007566

Therefore, 7.35 x 10^-7 + 2.16 x 10^-8 = 7.566 x 10^-7.