Return to Video

Combining Powers of Ten - Visualizing Algebra

  • 0:00 - 0:05
    If you said 9, excellent work. I've copied this part of the fraction over here.
  • 0:05 - 0:09
    Working with bases of 10, I can use my exponent rules to figure out what the
  • 0:09 - 0:14
    power should be. Here are multiplying bases, so we add the exponents. 5 plus
  • 0:14 - 0:18
    negative 3 equals 2, and negative 4 plus negative 3 equals negative 7. Next I
  • 0:18 - 0:23
    can subtract my exponent since I'm doing division of the bases. So 10 to the 2
  • 0:23 - 0:27
    minus negative 7, or 10 to the 9th. This also makes sense because we know
  • 0:27 - 0:31
    negative exponents wind up in the opposite position. So 10 to the negative 7th
  • 0:31 - 0:36
    would wind up being 10 to the positive 7th in the numerator. 10 to the 2nd and
  • 0:36 - 0:38
    10 to the 7th would be 10 to the 9th.
Title:
Combining Powers of Ten - Visualizing Algebra
Video Language:
English
Team:
Udacity
Project:
MA006 - Visualizing Algebra
Duration:
0:39
Udacity Robot edited English subtitles for Combining Powers of Ten - Visualizing Algebra
Cogi-Admin added a translation

English subtitles

Revisions Compare revisions