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chao chao
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The charcoal from a tree killed in a volcanic eruption contained 64.7% of the found in living matter.  How old is the tree, to the nearest year?  Use for the half-life of

▸ 5700 years

▸ 1720 years

▸ 2482 years

▸ 3581 years
Textbook 

Calculus: Early Transcendentals


Edition: 3rd
Authors:
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kater28kater28
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3581 years

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