Question 251246: how do you write each number in scientific notations? 75,000,000
Found 2 solutions by rapaljer, solver91311:
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! 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
Answer by solver91311(24713)  (Show Source):
You can put this solution on YOUR website!
For numbers greater than 1, like this one, proceed as follows:
Move the decimal point to the left until it is between the last digit on the left and the 2nd to the last digit on the left. Count the number of places you moved the decimal point. Then throw away all of the zeros on the right of the significant digits. Add a "times" sign and a 10 with an exponent equal to the number of times you moved the decimal point.
John
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