The school dance committee wants to know whether the students in the entire school prefer ballet or jazz. The dance committee dr
aws a random sample from the following groups: All students on the dance team All students in each grade All girls in each grade All school teachers Which of the following groups best represents the population they should take a random sample from to get the best results for their survey? All students on the dance team All students in each grade All girls in each grade All school teachers
The circumference is about 3.14 () times bigger than twice the radius. Mathematically, this can be writted as , where C equals the circumference and r equals the radius, or where C equals the circumference and d equals the radius.
) times bigger than twice the radius. Mathematically, this can be writted as 
, where C equals the circumference and r equals the radius, or 
where C equals the circumference and d equals the radius.