The following table shows the fuel efficiency (In miles per gallon) of a car in relation to the speed that it is traveling (In miles per hour).
Speed Fuel Efficiency
15
20.4
25
27.2
35
28.3
45
29.0
55
30.1
65
27.6
75
23.1
Use a graphing or online regression calculator to find the quadratic function of best fit for this set of data. Then, predict
the approximate fuel efficiency of this car when it is traveling 80 miles per hour.

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14