Half of the product of two consecutive numbers is 105. to solve for n, the smaller of the two numbers, which equation can be used? a.) n^2 + n – 210 = 0 b.) n^2 + n – 105 = 0 c.) 2n^2 + 2n + 210 = 0 d.) 2n^2 + 2n + 105 = 0

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.

Need solving this 2nd limit problem.

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.