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anonymous

  • one year ago

Help plz!

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  1. anonymous
    • one year ago
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  2. misty1212
    • one year ago
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    careful careful here this can be very confusing

  3. misty1212
    • one year ago
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    lets go nice an slow ok?

  4. anonymous
    • one year ago
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    It is. I want to work it out

  5. misty1212
    • one year ago
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    we need to do three things ready?

  6. anonymous
    • one year ago
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    yes

  7. misty1212
    • one year ago
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    first lets multiply the numbers out front \[4.5\times6 = ?\]

  8. anonymous
    • one year ago
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    27

  9. misty1212
    • one year ago
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    right notice that it is larger than 10, so we will have to adjust something put that aside for a second and add the exponents \[-8+(-4)=?\]

  10. anonymous
    • one year ago
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    It is D

  11. anonymous
    • one year ago
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    -12

  12. misty1212
    • one year ago
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    right

  13. misty1212
    • one year ago
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    so one answer (not the final one) is \[27\times 10^{-12}\]

  14. misty1212
    • one year ago
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    you can't use \(27\) because it is larger than 10 so you have to use \(2.7\) that means you have to change the exponent as well

  15. misty1212
    • one year ago
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    when you go from \(27\) to \(2.7\) you are dividing by 10 to compensate you have to add 1 to the exponent what i s\(-12+1\)?

  16. anonymous
    • one year ago
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    im back sorry it's -11 SO that means it's D.

  17. anonymous
    • one year ago
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    tysm @misty1212! I got a 100%!!!

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