Triangle abc is a right triangle and cos(22.6)=b/13. slobs for b and round to the nearest whole number

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.

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x