A patient is treated with 128 mCi (millicuries) of iodine-131 ( 131 I ) . The radioactivity level R ( t ) (in mCi) after t days is given by R ( t ) = 128 ( 2 ) − t / 4.2 . (In this model. the value 4.2 is related to the biological half-life of radioactive iodine in the body.) a. Determine the radioactivity level of I 131 in the body after 6 days. Round to the nearest whole unit.
A patient is treated with 128 mCi (millicuries) of iodine-131 ( 131 I ) . The radioactivity level R ( t ) (in mCi) after t days is given by R ( t ) = 128 ( 2 ) − t / 4.2 . (In this model. the value 4.2 is related to the biological half-life of radioactive iodine in the body.) a. Determine the radioactivity level of I 131 in the body after 6 days. Round to the nearest whole unit.
Solution Summary: The author explains how to calculate the radioactivity level of 131I in the body after 6 days.
A patient is treated with 128 mCi (millicuries) of iodine-131
(
131
I
)
. The radioactivity level
R
(
t
)
(in mCi) after t days is given by
R
(
t
)
=
128
(
2
)
−
t
/
4.2
. (In this model. the value 4.2 is related to the biological half-life of radioactive iodine in the body.)
a. Determine the radioactivity level of
I
131
in the body after 6 days. Round to the nearest whole unit.
A research study in the year 2009 found that there were 2760 coyotes
in a given region. The coyote population declined at a rate of 5.8%
each year.
How many fewer coyotes were there in 2024 than in 2015?
Explain in at least one sentence how you solved the problem. Show
your work. Round your answer to the nearest whole number.
Answer the following questions related to the following matrix
A =
3
³).
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