Concept explainers
Graphical Reasoning An electronically controlled thermostat is programmed to lower the temperature during the night automatically (see figure). The temperature T in degrees Celsius is given in terms of t, the time in hours on a 24-hour clock.
(a) Approximate T(4) and T(15).
(b) The thermostat is reprogrammed to produce a temperature
(c) The thermostat is reprogrammed to produce a temperature
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Chapter P Solutions
Calculus
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