Ashark is swimming 28 ft below sea level. if the angle of depression from a boat on the water to the shark is 19 degrees, what is the horizontal distance between the boat and the shark?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

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.

Vertical angles must check all that apply