Determine whether each of the following statements is true or false. (a) Line segments, rays and angles are sets of points.
(b) Two perpendicular lines form four right angles.
(c) If you make two diagrams to represent two lines, line AB and line CD, and the pencil lines you draw do not cross in the diagram, then the two lines cannot intersect.
(d) If two angles are supplementary angles, then they are also adjacent angles.

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14