13. A diving board is 5 feet above the water level of the pool. A swimmer steps off the board into the water. The function d
-16x² + 5 gives
the distance d of the swimmer's feet above the water level after x seconds.
a. When do the swimmer's feet hit the water?
b. When will the swimmer's feet be 4 feet below the water level?
c. The high diving board is 15 feet above the water level of the pool. How
could you translate the function d = –16x2 + 5 to adjust for the height
of the high diving board?

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d