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QUESTION
The pressure P (in pounds per square foot), in a pipe varies over time. Six times an hour, the pressure oscillates from a low of 80 to a high of 240 and then back to a low of 80. The pressure at time
The pressure P (in pounds per square foot), in a pipe varies over time. Six times an hour, the pressure oscillates from a low of 80 to a high of 240 and then back to a low of 80. The pressure at time t=0 is 80. Let the function P=f(t) denote the pressure in pipe at time t minutes
