Find the average of these numbers. 12, 9, 11, 8, 9, 12, 9 a) 8 b) 9 c) 10 d) 12

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.

Iwill give you ! what is the measure of ∠v ?

What would the rule be for the reflection of y=-3