Mathematics, 10.12.2020 20:10 MahiraBashir

A metal bar is heated to a certain temperature and then the heat source is removed. At time t minutes after the heat source is removed, the temperature, theta degrees Celsius, of the metal bar is given by theta=280/(1+0.02t). At what rate is the temperature decreasing 100 minutes after the removal of the heat source?

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A metal bar is heated to a certain temperature and then the heat source is removed. At time t minute...

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