Technetium-99m is a radioactive substance used to diagnose
Chapter , Problem 5.2.50(choose chapter or problem)
Technetium-99m is a radioactive substance used to diagnose brain diseases. Its half-life is approximately 6 hours. Initially you have 200 mg of technetium-99m. (a) Write an equation that gives the amount of technetium-99m remaining after hours. (b) Determine the number of hours needed for your sample to decay to 120 mg. (c) Determine the concavity of the graph that models the half-life of technetium-99m using average rates of change over intervals of length 2 between = 0 and = 6.
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