could someone help me with math?

Question

Find this quotient. Enter your answer in scientific notation.

4.8×10^9/4×10^8

Answer 1

The quotient on this one after dividing should be 1.2 x 10^1!

This is found by dividing the coefficients and subtracting the exponents:

(4.8/4​)×10^(9−8)

=1.2 x 10^1

Answer 2

(4.8x10⁹/(4x10⁸)

 

= 1.2 x 10⁹ x 10^-8

 

= 1.2 x 10^9-8

 

= 1.2 x 10

 

= 12