Can you me find the answer for number 2

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?