Question

What is 0.000000986 in scientific notation?
____x10---

Answer 1

it's going to be a negative exponent, since the number is less that 1.
move the decimal to where 986 is more than one but less that 10.
9.86X10^-7

Answer 2

`0.000000986 = 986 * 10^(-9)=\boxed{ 9.86 * 10^(-7)}`