What is the slope of the line passing through the points (-8,5) and (7,0)

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Which function has the domain x> -11?