C=2πR
C equals the <span>circumference of the circle, while π is 3.14 and R is the radius. them multiply that by 2
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This is how to find the average speed: the total distance ÷ the total number of hours
the total distance in this case is 120+120=240
the total hours is 120/60 + 120/40 =2+3=5
so 240/5=48
48 miles per hour
(x+2)(5x-1) (x+10)(x+7)
(x+10)(x+2) 3(5x-1)
Cancel like factors and you're left with. (x+7)/3
The formula for finding the area of any regular polygon if you know the length of one side and the apothem: A = (n × s × a)2 A = ( n × s × a ) 2 , where n is the number of sides, s is the length of one side, and a is the apothem.
