What is the correct scientific notation for 31,200,000,000? 1) 3.12 * 1010 2) 3.12 * 109 3) 3.12 -* 10-10 4) 31.2 * 109

It will be 4) 31.2 10 to the 10th power.

Because 31.2 times 10 to the 10th power because you are multiplying by the 10s power you simply move the decimal to the left or the right.

Because the power is positive (+) you move to the right 

If it is negative (-) you move to the left

The answer would be 31,200,000,000

Hope this helped!

:)

It should be 3.12 times 10 to the 10th power

25 is obviously the correct answer