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College Algebra MATH 107 Fall, 2019, V1.8 29. The fuel efficiency F for a particular car is given by F(x) =0.018 x2 + 1.656 x

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College Algebra MATH 107 Fall, 2019, V1.8 29. The fuel efficiency F for a particular car is given by F(x) =0.018 x2 + 1.656 x + 1.8 where x is the speed of the car in miles per hour (mph) and F(x) is the corresponding fuel - efficiency in miles per gallon (mpg). (a) What is the fuel efficiency if the car's speed is 30 mph? (b) What speed will yield the maximum fuel efficiency? Show work

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