SOLUTION: The formula below can be used to find the number of milligrams D of a certain drug that is in a patients bloodstream h hours after the drug has been administered.
D = 5e-0.38h
Wh
Algebra.Com
Question 681441: The formula below can be used to find the number of milligrams D of a certain drug that is in a patients bloodstream h hours after the drug has been administered.
D = 5e-0.38h
When the number of milligrams reaches 2, the drug is to be administered again. What is the time between injections?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Generally it is an exponential function.
It may be D= 5e^(-0.37h)
I assume the above
here D = 2
2= 5e^(-0.37h)
/5
0.4=e^(-0.37h)
taking the natural log
ln(0.4)=-0.37h
(ln(0.4))/(-0.37)=h
h is the time in hours
RELATED QUESTIONS
The formula below can be used to find the number of milligrams D of a certain drug that (answered by scott8148)
The formula D=10e^-0.9h can be used to find the number of milligrams D of a certain drug... (answered by MathLover1)
the function D(h)=7e^-0.3h can be used to find the number of milligrams D of a certain... (answered by josgarithmetic)
The function D(h)=7e^-0.3h can be used to find the number of milligrams D of a certain... (answered by josgarithmetic)
The formula D(t)= 6e^-0.1t can be used to find the number of milligrams (mg) D of a... (answered by Theo)
The formula D(t)= 6e^-0.1t can be used to find the number of milligrams (mg) D of a... (answered by ikleyn,Alan3354)
Solve the problem.
The function D(h)=9e^-0.4h can be used to determine the milligrams D... (answered by Cromlix)
The function D(h)=5e^-0.4h can be used to determine the milligrams D of a certain drug in (answered by Fombitz)
The function can be D(h)=9e^-0.4h used to determine the milligrams D of a certain drug in (answered by ikleyn)