Question

Which is the best estimate for 6.3×10 to the second power times 9.9×10 to the 3rd power written in scientific notation

Answer 1

in scientific notation, the expression can be written as 6.237 x 10⁶

Explanation:

Given;

6.3×10 to the second power times 9.9×10 to the 3rd power

Using scientific notation, it can be interpreted as;

`(6.3 * 10^2) * (9.9 * 10^3)`

This can be simplified as;

`(6.3 * 10^2) * (9.9 * 10^3) = (6.3* 9.9)* 10^(2+3)\\\\= 62.37* 10^5 = 6.237* 10^6`

Therefore, in scientific notation, the expression can be written as 6.237 x 10⁶