X2 + y2 - 20x +14y + 28 = 0 is a circle. What is the radius of this circle?

During the 2012-2013 nba season, jamal crawford playing for the los angeles clippers, had a free throw percentage of 0.871. using complete sentences, describe the likelihood that he would make the free throw each time he stepped up to the line that season. explain your reasoning.

Average acceleration: i have no idea how to do this.

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent