Question

In 2009, the total population of north carolina was 2,890,425 people. what was the population in scientific notation, approximately?

Answer 1

2.9x10^6 rounding the 8 to 9.

Answer 2

Number is
`2.890425* 10^(6)` .

Explanation:

Given : Number 2,890,425

To find : what was the population in scientific notation.

Solution : We have given 2,890,425

Expanded form : 2,000,00 + 800,000+90,000+0000 + 400+20+ 5.

Steps to write in scientific notation :

Step 1 : If a number has n digit we move decimal point ( n-1) place to left

and to balance , multiply by
`10^(n-1)` .

We can see there are n = 7 in 2,890,425

So, we move decimal point 6 place to the left .

Then
`2.890425* 10^(6)` .

Therefore, Number is
`2.890425* 10^(6)` .