Question

What is the quotient of 8.4×10^9 and 8.4×10^2 expressed in scientific notation

Answer 1

The required quotient is:

`(8.4*10^9)/(8.4*10^2)`

To divide the numbers, first, divide the numbers which are not powers of 10, then divide the powers of 10 by subtracting the exponents:

`(8.4*10^9)/(8.4*10^2)=(8.4/8.4)*10^(9-2)=1.0*10^7`

The required quotient in scientific notation is 1.0 X 10⁷.