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he half-life of cesium-137 is 30 years. Suppose we have a 70-mg sample (a) Find the mass that remains after t years. In((2)xt) y(t)

he half-life of cesium-137 is 30 years. Suppose we have a 70-mg sample (a) Find the mass that remains after t years. In((2)xt) y(t) 30 mg 70e

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