Question

How do you write `3,500,000,000` in scientific notation?

Answer 1

`3.5 xx 10^9`

Explanation:

Given: `3,500,000,000`

Scientific notation requires a decimal to the right of the left-most non-zero number.

If there is no decimal, place a decimal to the far-right of all of the numbers: `3,500,000,000.`

Now move the decimal to the left until it resides to the right of the left-most non-zero number. Count how many places the decimal has moved:

`3.500000000 =>`decimal moved `9` places

Remove the extra zeros unless this is a measurement: `" "3.5 xx 10^9`