Question

Roughly 12,000 people in a certain country with radioactive iodine, or 1-131. This unstable form of iodine has a half-Ide diagnosed with thyroid cancer every year, which accounts for 1% of all curs in women three times as freguently as in men Fortunately, thyroid cancer n be treated successfuly in many cases 8 days and is gven in small doses measured in milicures. b a g an ninal dose of B0 milicuries Find the function that gives c. Finding the intial dose to give a particular patient is a crtical calculation, How does the time to reach 15% oflhe initial dose change d the ntal dose is increesed by 5 % ? amount of 1-131 in the bocdy aftor tz 0 days a. Suppose a patient is given an infial dose of 80 milicunies Find the function that grves amount of I-131 in the body atter 120 days yit)- (Round to decimal places s needed ) b. How long does t take t r the amount of 1-131 to reach 15% of the inbal dose? days IDo not round until the final answer. Then round to the nearest whole number as needed c. How does the time to reach 15% of the inital dose chenge if the initial dose is ncreased by 5 % ? Select the corect choice belkow and, if necessary, lil in the answer box to complete your choice Do not round untl the final answer Then round to the nearest whole number as needed) The time to reach 15% af the initial dose increases to days The Ime to reach 15 % of the initial dose decreases to days The fme to reach 15% of the initial dose stays the sames to select your answer(s)

show all work please

Roughly 12000 people in a certain country are diagnose a thyroid cancer every year which accounts for 1% of all cancer cases that occurs in women 3 times as frequently as men fortunately thyroid cancer can be treated successfully and many cases with radioactive iodine or I-131 this unstable form of iodine has a 1/2 life of 8 days and is given in small doses measured in milicuries
A)suppose a patient is given initial dose of 80 milicuries. find a function that gives the amount of I-131 in the body after t>0(more than or equal) days
B) how long does it take for the amount of I131 to reach 15% of the initial dose
C) finding the initial dose to give a particular patient is a critical calculation. how does the time to reach 15% of the initial dose change if the initial dose increased by 5%

Answer 1

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80 Thu 8o e ACt): fihd the which the amoun thre nitial he 형 Dodine rea ches cdoese knoo thal- ACE)Boe 80 milticune. hitial Quan ty the i tial aloe, x top 5 x8. tha tbe A 68ume thme pemod the reacu 5 ohich the initial dose A (to)1 - la 8o e OGI

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