Q2. [1 mark] At t = 0 minutes, a potato at room temperature (20°) is put into an oven maintained at 180°. Att 10 minutes its temperature is 80°. Recall the quantity that is exponentially decreasing here is D. (a) What is the 10-minute multiplier for D? (b) What is the 1-minute multiplier for D? [Please give an exact answer!] (c) What is its temperature T at t = 20 minutes? (d) What is its temperature at t = 45 minutes? ] (e) At what time is its temperature equal to 150°? Environment E = 180 Time t Temperature T D= E-T 0 20 10 20 45 150

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