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trojan2015

  • 3 years ago

Write 2120 in scientific notation.

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  1. LordHades
    • 3 years ago
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    2.1 X 10^3

  2. abdul_shabeer
    • 3 years ago
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    2.12*10^3

  3. LordHades
    • 3 years ago
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    *assuming 1 sig fig

  4. LordHades
    • 3 years ago
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    sorry 2

  5. chelbell409
    • 3 years ago
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    21.2*10^-2

  6. trojan2015
    • 3 years ago
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    0_o

  7. LordHades
    • 3 years ago
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    The first 2 are correct. 'chelbell409' is not.

  8. trojan2015
    • 3 years ago
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    ohh ok loool

  9. chelbell409
    • 3 years ago
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    im sorry it 21.2x10^2

  10. LordHades
    • 3 years ago
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    scientific notation means only numbers between 1 and 10. Correct me if I'm wrong, but you go to school in Canada, possible ontario?

  11. LordHades
    • 3 years ago
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    possibly*

  12. chelbell409
    • 3 years ago
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    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

  13. chelbell409
    • 3 years ago
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    and no i go to school i the usa

  14. LordHades
    • 3 years ago
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    "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.

  15. LordHades
    • 3 years ago
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    thats 10^2 and 10^1 and 10^0

  16. LordHades
    • 3 years ago
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    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).

  17. chelbell409
    • 3 years ago
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    did u check my answer on ur calculator

  18. LordHades
    • 3 years ago
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    Yeah, and its wrong. Here's my proof http://www.wolframalpha.com/input/?i=2120+scientific+notation

  19. chelbell409
    • 3 years ago
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    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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