6. A radioactive element has a half-life of 7.6 hours. (a) Find an equation of the form y=aekt to model the amount of th
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6. A radioactive element has a half-life of 7.6 hours. (a) Find an equation of the form y=aekt to model the amount of th
6. A radioactive element has a half-life of 7.6 hours. (a) Find an equation of the form y=aekt to model the amount of the element left after t hours if when you start measuring time you have 500mg of the element. Round k to 4 decimals. (b) Use your answer to part (a) to find how long it will take for the mass of the element to decrease by 70%. Round to one decimal.
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