SOLUTION: Good Morning all, The function D(x) models the cumulative number of deaths from a disease x years after 1984. D(x)=3919x^2+5362x+5573 Estimate the year when there were 82

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Good Morning all, The function D(x) models the cumulative number of deaths from a disease x years after 1984. D(x)=3919x^2+5362x+5573 Estimate the year when there were 82      Log On

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Question 460149: Good Morning all,
The function D(x) models the cumulative number of deaths from a disease x years after 1984.
D(x)=3919x^2+5362x+5573
Estimate the year when there were 82,000 deaths?
Thank you in advance.
Minka

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Just solve D(x) = 82000.



(take the positive solution)

The year 1988 would be the correct answer since it is four years after 1984.