A thermometer, reading 5°C, is brought into a room whose temperature is 22°C. One minute later the thermometer reading is 12°C. Which of the following gives the temperature decay constant k? a. -0.531 b. 17 C. 0.531 d. -17 How long, in minutes, does it take until the reading is about 21.9°C? a. 10.3 b. 9.67 C. 9.31 d. 8.43

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