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A fossilized leaf contains 21% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
9 years ago

Answers

Steve
just find t where

(1/2)^(t/5600) = 0.21
9 years ago
a
12608.61
7 years ago

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