2. A pitcher of buttermilk initially at 25°C is to be cooled by placing it on the front porch where the temperature is 2°C. The temperature of the buttermilk drops to 15°C after 30 minutes. (Newton's Law of Cooling) a) Find the complete model. T(t) = A +cekt b) How long will it take for the buttermilk to reach a temperature of 7°C? (Round to the tenths place.)

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