Question 251246
75,000,000.


With scientific notation, you need move the decimal to the left or right, so as to write a number between 1 and 10.  In other words, ONE digit to the left of the decimal. In this case, you need to write 7.5.  Then count the number of places you moved the decimal to get it there.  In this case you need to move it 7 places.  So the answer in scientific notation is 7.5x10^7.


If you want to see my own non-traditional explanation of this topic, then go to my own website by clicking on my tutor name anywhere in algebra.com.  Then click on the link for my website.  Look on my Homepage for the link "Basic, Intermediate and College Algebra: One Step at a Time."  Look in "Basic Algebra."  Then go to "Chapter 2", and you will find "Section 2.14 Scientific Notation."   It's all FREE!!  If you or anyone likes my website, try other topics as well, or whatever the topic you need help with, send me an Email (my Email address is at the bottom of each page of my website!), and I'll be glad to help you find the section you need on the website.


Dr. Robert J. Rapalje, Retired
Seminole State College of Florida