radioactive substance decays exponentially the mass at time t is mt mojek nhere mo the initia mdss negative constant the niean life ol an atoin the substance t k tett dt for radloactive isot 70735

SOLVED:A radioactive substance decays exponentially. A scientist begins with 100 milligrams of a radioactive substance. After 35 hours, 50 mg of the substance remains. How many milligrams will remain after 54 hours?

A certain radioactive material decays exponentially. The percent, P, of the material left after t years is given by P(t)=100(1.2)^-t a. Determine the half-life of the substance. b. How fast is the substance decaying at the point where the half-life is reached? | Numerade