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The radioactive substance uranium-240 has a half-life of 14 hours. The amount A (t) of...

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The radioactive substance uranium-240 has a half-life of 14 hours. The amount A (t) of a sample of uranium-240 remaining (in grams) after / hours is given by the following exponential function.A(t)=4300(1/2)^t/14Find the amount of the sample remaining after 13 hours and after 50 hours.Round your answers to the nearest gram as necessary.

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