You and a friend are hiking in the mountains. You want to climb to a ledge that is 20 ft. above you. The height of the grappling hook you throw is given by the function h(t) = - 16t2 - 32t +5. What is the maximum height of the grappling hook?​

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Three coins are flipped. what is the probability that there will be at least two tails?

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.