¿En qué nivel de medición se puede expresar cada una de estas variables? Razone su respuesta: -Los estudiantes se clasifican por especialidades con ayuda de los valores 1, 2, 3, 4, y 5. -Agrupar mediciones de líquidos en pinta, cuarto y galón.

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.

Plz hurry evaluate the expression a+b where a=8 and b=19

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x