Point d is in the interior of △abc. line cd intersects ab at point m. prove that, if aadc=abdc, then cm is the median of △abc.

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

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 one ? is the answer and how to find this answer