Let f(x) = 7x^2-5x+3 and g(x) = 2x^2+4x-6

part a: f(x)+g(x)
part b: f(x)-g(x)
part c: g(x)-f(x)

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c, with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55