Mathematics, 21.10.2021 01:00, jociymartinez6214

Raduim decays according to the function Q(t)=Q_(d)e^(-k) where Q represents the quantity remaining after t years and k=0.00043. How long will it take for 40 grams of radium to decay to 10 grams?

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Raduim decays according to the function Q(t)=Q_(d)e^(-k) where Q represents the quantity remaining a...