The two solids below are similar, and the ratio between the lengths of their edges is 4.7. What is the ratio of their surface areas?
7
A. 7:4
B. 16:28
C. 16:49
D. 64:343

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Find the multiplicative inverse of 8-12i

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.