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lodine 123 is a radioactive isotope used in medicine to test the function of the...

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lodine 123 is a radioactive isotope used in medicine to test the function of the thyroid gland Its half life is 13 1 hours A 575 microcurie uci dose of iodine 123 is administered to t 13 1 patient The quantity Q left in the body after t hours is given by the equation Q 575 1 2 a Determine the time it takes for the level of iodine 123 to drop to 25 Ci It takes 59 26 hr for the level of iodine 123 to drop to 25 Ci Type an integer or decimal rounded to two decimal places as needed b Determine the rate of change of the quantity of iodine 123 at 10 hr The rate of change of iodine 123 at 10 hr is 17 92 Ci hr Type an integer or decimal rounded to two decimal places as needed c Determine the rate of change of the quantity of iodine 123 at 1 day The rate of change of iodine 123 at 1 day is Ci hr Type an integer or decimal rounded to two decimal places as needed Answer parts a through d

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