Rate of Output of a Coal MineEach day the total output ofa
Chapter 1, Problem 68(choose chapter or problem)
Rate of Output of a Coal MineEach day the total output ofa coal mine afterthours of operation is approximately40t+t2115t3tons, 0t12. What is the rate ofoutput (in tons of coal per hour) att= 5 hours?Exercises 6972 refer to Fig. 3, wheres(t)is the number of feettraveled by a person aftertseconds of walking along a straight path.11ty234567891011120234567y = s(t)Figure 3Walkers progress.
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