Suppose a long-distance phone call costs $0.75 for the first minute (or any part of the first
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Suppose a long-distance phone call costs $0.75 for the first minute (or any part of the first minute), plus $0.10 for each additional minute (or any part of a minute).
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a. Graph the function c = f(t) that gives the cost for talking on the phone for t minutes, for 0 ≤t≤ 5. b. Evaluate lim f(t). t-2.9 c. Evaluate lim f(t) and lim f(t). t-3+ d. Interpret the meaning of the limits in part (c). e. For what values of t is f continuous? Explain.
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ANSWER a To graph the function c ft we need to consider the cost for talking on the phone for different values of t For 0 t 1 the cost is 075 since it ...View the full answer
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Related Book For
Calculus For Scientists And Engineers Early Transcendentals
ISBN: 9780321849212
1st Edition
Authors: William L Briggs, Bernard Gillett, Bill L Briggs, Lyle Cochran
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