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anonymous

  • 5 years ago

Situation: A farmer in China discovers a mammal hide that contains 54% of it's original amount of c-14. Find the age of the mammal hide to the nearest year.

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  1. anonymous
    • 5 years ago
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    this sounds like biology or something.

  2. anonymous
    • 5 years ago
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    it's math.

  3. anonymous
    • 5 years ago
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    Ok well maybe I just don't get it... What class is it for?

  4. anonymous
    • 5 years ago
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    algebra 2

  5. anonymous
    • 5 years ago
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    really? is there any other information with the problem?

  6. anonymous
    • 5 years ago
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    \[N = N _{0}e ^{-kt}\]

  7. anonymous
    • 5 years ago
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    N is amout remaining now; and No is initial amount?

  8. anonymous
    • 5 years ago
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    correct

  9. anonymous
    • 5 years ago
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    so, N =54, No =100 and what is k?

  10. anonymous
    • 5 years ago
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    54/100 = e^(-k *t) log(.54) =-k *t if u were given the value of k, just plug in and findout t.

  11. anonymous
    • 5 years ago
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    k = .0001

  12. anonymous
    • 5 years ago
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    plug in log(.54) = -0.0001 * t log(.54) / -0.0001 = t

  13. anonymous
    • 5 years ago
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    i dont hav the calculator with me now, u have to feed it in and see what T is.

  14. anonymous
    • 5 years ago
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    log (.54) is a -ve value / - value of that k = +ve time...so thats right

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spraguer (Moderator)
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