A heated piece of metal cools according to the function c (x) = (.5) x - 10, where x is measured in hours. A device is added that aids in cooling according to the function h (x) = - x - 1. What will be the temperature of the metal after five hours?
-6° Celsius
26° Celsius
32° Celsius
38° Celsius
+1
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Home » Mathematics » A heated piece of metal cools according to the function c (x) = (.5) x - 10, where x is measured in hours. A device is added that aids in cooling according to the function h (x) = - x - 1.