Question

What is 0.000000685 written in scientific notation?

Answer 1

The answer is: 6.85 x 10 to the negative 7

Answer 2

we have

$0.000000685$

we know that

$0.000000685=\frac{685}{1,000,000,000} =\frac{685}{10^{9}}=685*10^{-9}$

$685*10^{-9} =6.85*10^{-7}$

therefore

the answer is

$6.85*10^{-7}$