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iragen [17]
3 years ago
6

The half-life of cobalt 60 is 5.3 years. What fraction of a sample remains after 21.2 years?

Biology
1 answer:
USPshnik [31]3 years ago
5 0
<span>As given
21.2 / 5.3 = 4 times.
Hence,
 The answer would be
(1/2)^ 4
=1/16
So the answer is D</span>
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