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A certain radioactive material decays exponentially. The percent, P, of the material left after t years is given by PU) = 1000.2). a. Determine the

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A certain radioactive material decays exponentially. The percent, P, of the material left after t years is given by PU) = 1000.2)". a. Determine the half-life of the substance. b. How fast is the substance decaying at the point where the half-life is reached? (J

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