Answer:
4 x 10^5
Explanation:
To divide (4.8x10^3) by (1.2x10^-2), we need to divide 4.8 by 1.2, and then multiply the result by 10^3 / 10^-2.
4.8 divided by 1.2 is 4.
10^3 / 10^-2 can be simplified as 10^3 * 10^2 = 10^(3+2) = 10^5.
So, the expression can be written as:
(4.8x10^3) / (1.2x10^-2) = (4 / 1.2) x 10^5
= 4 x 10^5
The standard form of this expression is 4 x 10^5.