2) What is a definition of a line that is parallel to XY?
a. a coplanar line that bisects XY
b. a coplanar line that does not intersect XY
C. a coplanar line that intersects XY at a right angle
d. a coplanar line that intersects XY but not at a right angle

Every rhombus is a square. true false

Which math sentence can be used to determine if the triangle is a right triangle?

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.