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(0703 (o) o 1T g [5) 20:40 Question An unknown radioactive element decays into non-radioactive substances. In 30 days the radioactivity of a sample decreases by 12%. The exponential decay model for the decay after ¢ days is given by P(t) S P06—0.004261t When will a sample of 50 mg decay to 10 mg? Round your final answer to 1 decimal place. Answer Explanation Correct answers: u Ex: Exponential Decay Models Anunknown radioactive element decays into ne radioac¢tive substances. In 30 days the radioacti E sample decredses by 12% percent.
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