The fuel economy (in miles per gallon) of a certain car is E(x)=−0.01x2 + 0.52x +10.4, where x is the driving speed (in miles per hour, 20 ≤ x ≤ 60). At what speed is fuel economy greatest?x =

Name: The fuel economy (in miles per gallon) of a certain car is E(x)=−0.01x
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Description: The fuel economy (in miles per gallon) of a certain car is E(x)=−0.01x2 + 0.52x +10.4, where x is the driving speed (in miles per hour, 20 ≤ x ≤ 60). At what speed is fuel economy greatest?x =

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Answered: The fuel economy (in miles per gallon)…

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter2: Functions

Section2.4: Average Rate Of Change Of A Function

Problem 1E: If you travel 100 miles in two hours, then your average speed for the trip is Average...

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The fuel economy (in miles per gallon) of a certain car is E(x)=−0.01x² + 0.52x +10.4, where x is the driving speed (in miles per hour, 20 ≤ x ≤ 60).

At what speed is fuel economy greatest?

x =

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