The half-life of a certain radioactive material is 5 days. The length of time it will take for the material to decay to of its original mass is In 5 days 5 In 3 a) O = In 3 5 In 2 b) Ot = days 5 In 3 days In 2 с) О 5 In 2 In 3 d) Ot = days 3 In 5 e) Ot = days In 2 f) ONone of the above.

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