Question

Simplify (6.9 × 10−8) − (2.8 × 10−9). Write the final answer in scientific notation. 6.62 × 10−9 6.62 × 10−8 4.1 × 10−1 4.1 × 101

Answer 1

Answer: 6.62 x 10^-8

Explanation:

(6.9 x 10^-8) - (2.8 x 10^-9)

0.000000069 - 0.0000000028

0.0000000662

6.62 x 10^-8