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  • 21-11-2017
  • Mathematics
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which of these are written in scientific notation

which of these are written in scientific notation class=

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mathmate
mathmate mathmate
  • 21-11-2017
A properly written number in scientific notation has the form:
+/- A*10^n
where +/- is either plus or minus
A is a decimal number (or integer) where 1<= A < 10
and n is a positive or negative integer.

According to these rules, 
120,000,000 is written in scientific notation as
1.2 * 10^8
so we need to move the decimal point 8 places to the left and multiply by 10^8.
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