SOLUTION: The function A=Asubzero(e)^(-0.01386x)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
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Question 326910: The function A=Asubzero(e)^(-0.01386x)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. If 400 pounds of the material are initially put into the vault, how many pounds will be left after 120 years?
a. 480 lbs.
b. 83 lbs.
c. 300 lbs.
d. 76 lbs. Answer by Fombitz(32388) (Show Source):
