True or false, to eulerize the graph it is legal to add a new edge at the location shown

Solve the system of equations. y= 2x y= x^2 - 15

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

How far could you drive on 50 gallons of gas