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A tray of lasagna comes out of the oven at 200°F and is placed on a table where the surrounding room temperature is 70°F. The temperature T (in °F) of the lasagna is given by the function T(t) = e^(4.86753 - t) + 70, 0 is less than or equal to t, where t is time (in hours)after taking the lasagna out of the oven. What is the rate of change in the temperature of the lasagna exactly 2 hours after taking it out of the oven?

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2 answers

  1. -17.59

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  2. dT/dt = -130 e^-t
    so plug in t = 2

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