What would be the reason for the second and third line of the proof?
Because the sum of all angles in a triangle is 180°
Because vertical angles are congruent
Because alternate interior angles are congruent
Because both angles are supplementary

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)