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  1. welshfella
    • one year ago
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    what you need to remember about scientific notation is that its of the form N * 10^n where N is a number between 1 and 10 ( not including 10)

  2. anonymous
    • one year ago
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    i know that

  3. welshfella
    • one year ago
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    so for the first one its 2.5 * 3 * 10^-3 * 10^-4 = 7.5 * 10 ^-7

  4. anonymous
    • one year ago
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    so 1=A?

  5. welshfella
    • one year ago
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    If the first number is not 1-10 you need to multiply/ dividethe 2 parts as appropriate

  6. welshfella
    • one year ago
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    yes

  7. welshfella
    • one year ago
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    for example;- 15 * 10^ -6:- divide 15 by 10 = 1.5 multiply 10^-6 by 10 = 10^-5 giving 1.5 * 10^-5

  8. welshfella
    • one year ago
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    any questions?

  9. anonymous
    • one year ago
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    no i understand the concept so 1=A?

  10. welshfella
    • one year ago
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    yes

  11. anonymous
    • one year ago
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    B?

  12. welshfella
    • one year ago
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    do you mean is 2 = B?

  13. anonymous
    • one year ago
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    no im asking what is B?

  14. welshfella
    • one year ago
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    well you are supposed to match them right so work out 2 and see if it = B.

  15. anonymous
    • one year ago
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    okay

  16. anonymous
    • one year ago
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    3 = B ;p

  17. welshfella
    • one year ago
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    9.6 / 3.2 = 3

  18. anonymous
    • one year ago
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    ;p typo 9.6 / 3.2 = 3 and 3.2 /10^9 = 10^17 ;p

  19. welshfella
    • one year ago
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    yes so 2 = B

  20. anonymous
    • one year ago
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    so 2= b ;C

  21. welshfella
    • one year ago
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    i think you get it gotta go right now

  22. anonymous
    • one year ago
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    thanks m8

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