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Thread: Exponential models

  1. #1
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    Exponential models

    Exam is over and I got help from someone else, no one on here wanted to help, or didn't see it.

    Close Please.
    Last edited by kevinrudd; Mar 11th 2010 at 12:34 AM. Reason: No need for this anymore.
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  2. #2
    Master Of Puppets
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    1) For the equation $\displaystyle N= 1000e^{-0.115t}$

    a) Find $\displaystyle t$ when $\displaystyle N =500$

    $\displaystyle 500= 1000e^{-0.115t}$

    Now solve for $\displaystyle t$

    a) Find $\displaystyle N$ when $\displaystyle t =28$

    $\displaystyle N= 1000e^{-0.115\times 28}$

    Now solve for $\displaystyle N$
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  3. #3
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    Thanks man, yeah I already got 1 b), but thanks.
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