anonymous
  • anonymous
Write 2120 in scientific notation.
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
2.1 X 10^3
anonymous
  • anonymous
2.12*10^3
anonymous
  • anonymous
*assuming 1 sig fig

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anonymous
  • anonymous
sorry 2
anonymous
  • anonymous
21.2*10^-2
anonymous
  • anonymous
0_o
anonymous
  • anonymous
The first 2 are correct. 'chelbell409' is not.
anonymous
  • anonymous
ohh ok loool
anonymous
  • anonymous
im sorry it 21.2x10^2
anonymous
  • anonymous
scientific notation means only numbers between 1 and 10. Correct me if I'm wrong, but you go to school in Canada, possible ontario?
anonymous
  • anonymous
possibly*
anonymous
  • anonymous
y don`t you get your calculator out and check because the decimal can`t be 2 digits and i checked my work on a calculator
anonymous
  • anonymous
and no i go to school i the usa
anonymous
  • anonymous
"Any given number can be written in the form of a×10b in many ways; for example 350 can be written as 3.5×102 or 35×101 or 350×100." *from wikipedia.
anonymous
  • anonymous
thats 10^2 and 10^1 and 10^0
anonymous
  • anonymous
In scientific notation, the exponent b is chosen such that the absolute value of a remains at least one but less than ten (1 ≤ |a| < 10).
anonymous
  • anonymous
did u check my answer on ur calculator
anonymous
  • anonymous
Yeah, and its wrong. Here's my proof http://www.wolframalpha.com/input/?i=2120+scientific+notation
anonymous
  • anonymous
ok watch 2120 212.0 *10 21.2*10^2 10 times 2 equals 100 21.2 times 100 equals 2120 which just so happens to be the number i started out with

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