Question

9.31x 10^3= blank x10^5. Explain step by step

Answer 1

Answer:

0.0931 x 10^5

Explanation:

9.31 x 10^3 = 9.31 x 10^-2 x 10^2 x 10^3

                  = 0.0931 x 10^(2+3)

                  = 0.0931 x 10^5

We have used: 10^a x 10^-a = 10^(a - a) = 10^0 = 1

Multiplying any number by 1 does not change its value.

Hence, multiplying by 10^a x 10^-a does not change its value.

In this case, we have multiplied by 10^2 x 10^-2 without affecting the value.