Question

What is the power of 10 when 0.000028 is written in scientific notation?

Answer 1

2.8*10^5
just count how many places you need to move the decimal to put it after the 2

Answer 2

The power of 10 would be -5

Explanation:

In scientific notation we write a very small or very large number as the product of a number from 0 to 9 and the exponent of 10,

For getting a number between 0 to 9 if the decimal shifted right side then the exponent of 10 is negative power of total shifting while if the decimal shifted left side then the exponent of 10 is positive power of total shifting.

Here, the number is,

0.000028

By the above explanation, we need to shift the decimal five time to the right so the exponent of 10 would be 5.

`\implies 0.000028=2.8* 10^(-5)`