10. Sally reasoned that if she drove 30 km/hr in one direction over a 180 km distance, andthen returned traveling at 60 km/hr over the same distance, that her average speedmust be half way between 30 and 60, which is 45 km/hr. Is she right? Why or why not?

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Answered: 10. Sally reasoned that if she drove 30…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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10. Sally reasoned that if she drove 30 km/hr in one direction over a 180 km distance, and then returned traveling at 60 km/hr over the same distance, that her average speed must be half way between 30 and 60, which is 45 km/hr. Is she right? Why or why not?