A ceramic mug is removed from a pottery kiln once the mug reaches a temperature of 700 degrees Celsius. The temperature of the mug then decreases at a rate given by r (t) = 20+100 arctan t degrees Celsius per minute, where t is 1+t the number of minutes since being removed from the kiln. What is the temperature of the mug, to the nearest degree Celsius, at time t 10 minutes? A) 15 (B 288 412 685

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