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Virty [35]
3 years ago
5

An anthropologist finds bone that her instruments measure it as 0.921% of the amount of Carbon-14 the bones would have contained

when the person was alive. How long ago did the person die?
The half life of carbon 14 is 5,730 years. Round your answer to the nearest thousand.
Mathematics
1 answer:
Naily [24]3 years ago
5 0
Formula for C - 14 dating:
Age = [ ln ( percent/100 ) / ln (1/2 ) ]  * 5,730 =
= [ ln ( 0.00921 ) / ln ( 0.5 ) ] * 5.730 =
= [( - 4.68746 ) : ( - 0.6931478 )] * 5,730 =
= 6.7626 * 5,730 = 38,749.56 ≈ 39,000 ( rounded to the nearest thousand )
Answer: The person died about 39,000 years ago.

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