During a production process surface scratches occur on flat panel displays at a mean rate of 0.1 scratches per display. If you pick a random sample of 10 flat panel displays, what is the probability that the total number of scratches on the displays in the sample is less than 3

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