Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent?
use the slope formula to prove the slopes of the opposite sides are the same
use the slope formula to prove the slopes of the opposite sides are opposite reciprocals
use the distance formula to prove the lengths of the opposite sides are the same
use the distance formula to prove the midpoints of the opposite sides are the same

70 points ! pls 2. given the following two sets of data what is the union of the two sets and what is the intersection of the two sets. set a = {1, 2, 3, 4, 5, 6, 7, 8, 9} set b = {2, 4, 6, 8, 10, 12, 14} 3. given a regular deck of cards. describe a way of pulling cards that would create a dependent event and then one that would create an independent event. 4. what is the probability of drawing a red card and then drawing a spade without replacing the card that was drawn first?