K kid New member Jun 22, 2010 #1 ...equation (x + 100)2 + y2 = 36.? What is the diameter of the tire? 12 18 36 50 i think its 36??
K Kristie New member Jun 22, 2010 #2 The answer should be 12 The general formula for a circle is: (x + a)^2 + (y + b)^2 = r^2, where r is the radius of the circle In this case, a = 100, b = 0, and r^2 =36 So r =6, but we are asked for diameter which is 2r 2r = (2)(6) = 12
The answer should be 12 The general formula for a circle is: (x + a)^2 + (y + b)^2 = r^2, where r is the radius of the circle In this case, a = 100, b = 0, and r^2 =36 So r =6, but we are asked for diameter which is 2r 2r = (2)(6) = 12
