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What is 7.09 x 10^5 - 6.10 x 10^4 in scientific notation

User Amir Beygi
by
7.7k points

1 Answer

5 votes
If you want to subtract them in scientific notation, first you need to make both exponents equal. One of them is raised to 5 and the other is raised to 4.


7.09 x
10^(5)


6.10 x
10^(4)

To make the first one raised to four, all you need to do is move the decimal to the right. The new notation will then be:


70.9 x
10^(4)

Now all you need to do is line up the decimals like you would normally and then subtract. Also copy the
10^(4)


70.9 x
10^(4)
-
6.10 x
10^(4)
=

64.8 x
10^(4)

Then we to make it in standard form, just move the decimal to the left and add 1 to the exponent.


6.48 x
10^(5)

User Desty
by
8.2k points