Thursday
March 23, 2017

Post a New Question

Posted by on Wednesday, October 8, 2008 at 5:41pm.

How do I express a decimal in scientific notation? I know how to do it with whole numbers, but don't know what the rules are when the number is something like .00075.

  • Math - , Wednesday, October 8, 2008 at 6:30pm

    the decimal is always placed after the first signigicant digit, in your case 7.5, then count the number of decimal places it was moved. That becomes your exponent of 10
    if you had to move to the right, the exponent is negative, if you moved to the left, the exponent is positive.
    so .0075 = 7.5 x 10-4

    34567.21 = 3.456721 x 104

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question