Please help me! I am too far out of college to help my son with this problem!
The fuel efficiency E (in miles per gallon) for a midsized car can be modeled by the equation E=-0.018v squared + 1.476v +3.4 where v is the speed in miles per hour of the car.
1. at what speed should the car travel on the highway to get 30 miles per gallon?
2. does the midsized car ever get 35 miles per gallon? if so at what speeds.
3. Give a value of c for which the equation 5x squared + 10x +c =0 has two solutions one solution and no solutions.
we have a fancy calculator and think you use that to solve but I can't figure out what to do.
The fuel efficiency E (in miles per gallon) for a midsized car can be modeled by the equation E=-0.018v squared + 1.476v +3.4 where v is the speed in miles per hour of the car.
1. at what speed should the car travel on the highway to get 30 miles per gallon?
2. does the midsized car ever get 35 miles per gallon? if so at what speeds.
3. Give a value of c for which the equation 5x squared + 10x +c =0 has two solutions one solution and no solutions.
we have a fancy calculator and think you use that to solve but I can't figure out what to do.