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fernando18

  • 3 years ago

5^x=81.2

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  1. tcarroll010
    • 3 years ago
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    Take the natural log of both sides. Also,\[\ln m ^{n} = (n)(\ln m)\]

  2. tcarroll010
    • 3 years ago
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    Use that rule for the left side of the equation and substitute5 for m and x for n.

  3. tcarroll010
    • 3 years ago
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    How are you doing with this now, given the above instructional hint?

  4. ayushprasad
    • 3 years ago
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    |dw:1356562387571:dw|

  5. ayushprasad
    • 3 years ago
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    |dw:1356562469028:dw|

  6. seidi.yamauti
    • 3 years ago
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    fo the exactly value of x you will need a calculator, by the way...

  7. tcarroll010
    • 3 years ago
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    Are you able to re-write the left-hand side now?

  8. tcarroll010
    • 3 years ago
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    If you show your work so far, I will be able to get an idea of where you are stuck.

  9. precal
    • 3 years ago
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    |dw:1356576833226:dw|

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