On wednesday at 9 a. m., winston went diving. near the beach, the ocean’s surface was at an elevation of -2.5 feet. during his deepest dive, winston reached an elevation that was 20 1/5 times the elevation of the ocean’s surface. what elevation did winston reach during his deepest dive?

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.