SOLUTION: A certain chemical rapidly decays in an oxygen-rich environment. The polynomial function S(t)=-0.5t^4 + 0.1t^3 - 0.1t^2 + 10.2, where t is the number of days since a fixed amount

Question 1198545: A certain chemical rapidly decays in an oxygen-rich environment.
The polynomial function S(t)=-0.5t^4 + 0.1t^3 - 0.1t^2 + 10.2,
where t is the number of days since a fixed amount of the
chemical was introduced to an oxygen-rich environment,
describes the strength of the chemical in that location. Use this
function to estimate the strength of the chemical after 1.5 days
and after 2 days.
the answersheet says 103,331 & 122,118 injuries but i think its wrong its asking for strength of the chemical not injuries.
Answer by ikleyn(52793) (Show Source): You can put this solution on YOUR website!
.


It is easy to get a "correct" answer, by substituting the given numbers of the days into the given formula.


I did it and got these answers  

    
    days     the strength of the chemical

     1.5        1.78   

     2          2.6


The answer is without the units names, since they are not given in the problem.

In whole, the "problem" is quite stupid, since it teaches nothing.

Have a nice day (!)

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