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11th Edition

Ron Larson + 1 other

Publisher: Cengage Learning

ISBN: 9781337275361

Chapter 1.2, Problem 61E

Textbook Problem

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**Modeling Data** For a long-distance phone call, a hotel charges $9.99 for the first minute and $0.79 for each additional minute or fraction thereof. A formula for the cost is given by

(*Note*:

For example,

(a) Evaluate *C* (10.75). What does *C* (10.75) represent?

(b) Use a graphing utility to graph the cost function for
*C* (*t*) as *t* approaches 3 exist? Explain.

**b)**

To determine

**To calculate:** The value of C(10.75)

**Given:**

**Calculation:**

Plug t=10.75 In C(t), We get

**b)**

To determine

The limit of C(t) as t approaches 3 by graphing method.

Calculus of a Single Variable

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For a quantity of gas at a...Ch. 1.5 - Rate of Change A 25-foot ladder is leaning against...Ch. 1.5 - Average Speed On a trip of d miles to another...Ch. 1.5 - Numerical and Graphical Analysis Consider the...Ch. 1.5 - Numerical and Graphical Reasoning A crossed belt...Ch. 1.5 - True or False? In Exercises 65-68, determine...Ch. 1.5 - True or False? In Exercises 65-68, determine...Ch. 1.5 - True or False? In Exercises 65-68, determine...Ch. 1.5 - True or False? 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