Mathematics, 03.02.2020 14:00 mettababeeeee

If the half-life of k-40 is 1.3 billion years and if a sample rock found on an island is estimated to be 1 billion years old, what percentage of the original parent k-40 would be present in the rock? round your numerical values to the hundredths decimal place.

answer choices

(a) 76.92%
(b) 1.3%
(c) 58.67%
(d) 99.99%

Answers: 1

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If the half-life of k-40 is 1.3 billion years and if a sample rock found on an island is estimated t...