Hey hey please If you stop by to see this assignment could you please help me??? I have to do number3 and a, b,c

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.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

The value of cos 30° is the same as which of the following?