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Vanyuwa [196]
4 years ago
14

50 POINTS PLEASE CHECK YOUR MATH BEFORE YOU POST OR I WILL REPORT AND TAKE BACK THE POINTS

Biology
2 answers:
Zigmanuir [339]4 years ago
6 0

The spear is 4620 years old.


N=N0e^-kt  

N0 = initial amount of C-14 (at time t = 0)  

N = amount of C-14 at time t  

t = time, in years  

k = 0.0001

N/N0 = e^-kt  

we know N/N0 is 0.63  

so we have:  

0.63 = e^-kt  

we can take the ln of both sides, leaving us with:  

ln0.63 = -kt  

t = ln0.63 / -(0.0001)  

t = 4620 years  

hope this helps with your thing!


-keynerd23

AnnZ [28]4 years ago
3 0

Answer:

Explanation:

you got it mixed up with 63% for your question.

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