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.
Solve the system of equation for y using Cramer's rule. Hint: The
determinant of the coefficient matrix is -23.
-
5x + y − z = −7
2x-y-2z = 6
3x+2z-7
eric
pez
Xte
in
z=
Therefore, we have
(x, y, z)=(3.0000,
83.6.1 Exercise
Gauss-Seidel iteration with
Start with (x, y, z) = (0, 0, 0). Use the convergent Jacobi i
Tol=10 to solve the following systems:
1.
5x-y+z = 10
2x-8y-z=11
-x+y+4z=3
iteration (x
Assi 2
Assi 3.
4.
x-5y-z=-8
4x-y- z=13
2x - y-6z=-2
4x y + z = 7
4x-8y + z = -21
-2x+ y +5z = 15
4x + y - z=13
2x - y-6z=-2
x-5y- z=-8
realme Shot on realme C30
2025.01.31 22:35
f
Use Pascal's triangle to expand the binomial
(6m+2)^2
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