19. The function h(t) = -5° +506 + 6 can be used to determine the height, h(t), in feet, of a super ball t seconds after it is thrown upward from a window on the first floor. At what time(s) is the ball 86 feet above the ground?
(Write your answer(s) as x = #, #)

Based on the figures as marked, /\rqs = —

How do you find principle and simple interest

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.