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A 100-gram sample of a radioactive unknown substance decays to 90% of its initial mass in 14 hours. Note: The mass of the sample is

A 100-gram sample of a radioactive unknown substance decays to 90% of its initial mass in 14 hours. Note: The mass of the sample is modeled by the formula M(t)=M_(0)e^(kt). (A) Find the growth consta 1 answer

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