Ascientist enlarged a circular portion of a microscope slide to make it easier to count the number of bacteria present in the sample. he divided the circle into 5 sectors as shown below and plans to count bacteria only in the shaded sector. what is the area of the shaded sector to the nearest tenth of a square centimeter a.141.4 b.212.1 c.377.0 d.424.1

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.