Question

What is 17,210,000,000 written in scientific notation?

Answer 1

Count every number and minus it by one

Answer 2

Now, cut off every zero.


We have


1.721.

Answer 3

so 1.721 times 10 with the power of 10

Answer 4

So, the scientific notation is:


1.721 x 10^10, and correct.


Do you know how we got it?

Answer 5

We simply move the decimal until we get behind the first '1'. Which is before the 7. We count how many spaces, and that will be our exponent. Then we cut off the zeroes behind the second 1.

Answer 6

thanks!!!