SOLUTION: The number of bacteria in a refrigerated food product is given by N(T)=23T^2 -81 T+50, 3 < T < 33 where T is the temperature of the food. When the food is removed from the refri

Question 976130: The number of bacteria in a refrigerated food product is given by N(T)=23T^2 -81 T+50, 3 < T < 33 where T is the temperature of the food.
When the food is removed from the refrigerator, the temperature is given by T(t) = 9 t + 1.5 , where t is the time in hours.
i found N(T(t))= 23(9t+1.5)^2-81(9t+1.5)+50 so now they ask...Find the time when the bacteria count reaches 11123 (Give your answer to at least 3 decimal places)? I'm unable to get that correct answer?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

What did you get when you squared the binomial, distributed the coefficients, and collected like terms?

John

My calculator said it, I believe it, that settles it

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