SOLUTION: The function f(x)=900(0.5)^x/100 models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was
Algebra.Com
Question 420451: The function f(x)=900(0.5)^x/100 models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. Find the amount of radioactive material in the vault after 90 years. Round to the nearest whole number.
a.) 482 pounds
b.) 405 pounds
c.) 417 pounds
d.) 500 pounds
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
given:
-----------
(using calculator)
--------
(a) 482
RELATED QUESTIONS
The function f(x) = 300(0.5) x/100 models the amount in pounds of a particular... (answered by ikleyn)
The function f(x) = 800(.5)^ x/60 models the account in pounds of a particular... (answered by Boreal)
The function 900e^-0.0099^x models the amount in pounds of a particular radioactive... (answered by stanbon)
The function f(x) = 300(0.5) x/60 models the amount in pounds of a particular radioactive (answered by addingup)
The function f(x) = 300(0.5) x/60 models the amount in pounds of a particular radioactive (answered by fractalier)
The function f(x) = 300(0.5) x/60 models the amount in pounds of a particular radioactive (answered by fractalier)
The function A = A0e^(-0.0099x) models the amount in pounds of a particular radioactive... (answered by josgarithmetic)
The function A=A0e^-0.01386x models the amount in pounds of a particular radioactive... (answered by stanbon)
The function A = A^ down 0e^-0.01386x models the amount in pounds of a particular... (answered by ikleyn)