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A cup of coffee at 82C is put into a 20C room when t = 0. The coffee's temperature is changing at a rate of

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A cup of coffee at 82C is put into a 20C room when t = 0. The coffee's temperature is changing at a rate of r(t) 2 6.5(0.9t) OC per minute, with t in minutes. Estimate the coffee's temperature when t = 10. NOTE: Round your answer to at least one decimal place. The temperature when t = 10 is approximately S 00

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