15,16,21 determine whether its the triangle is acute, right, obtuse, or not a triangle

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

How do i put 3(x+7) in distributive property