Find the angle between the given vectors to the nearest tenth of a degree. U = <8, 4>, V = <9, -9>

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

You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?