Question

Solve with due regards to significant figures 4.0 xx (10^-4) - 2.5 xx 10^(-6).

Answer 1

3.99975 x 10^-4

Explanation:

In order to do this, we will have to follow some rules. Since, significant figures are not treated same as that of normal figures.

First, we will have to make the power of both the figures same first

For example

4.0 x 10^-4 - 0.00025 x 10^-4  = 3.99975 x 10^-4

Answer 2

Answer:

the correct answer is 3.99975 * 10 power -4

HOPE THIS ANSWER HELPS YOU......