L 4.23 Quiz: Law of Cosines and Proofs Question 4 of 10 The law of cosines is a2 +62-2ebcosC - c?. Find the value of 2abcosC. 2 no A C 00 A. -21 O B. 24 C. -24 D. 21 BRIT​

What is the answer to this problem 7 * 5/6

Sorry guys but as you have a small brain

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.