Which of the following values is not changed by moving the center of an ellipse? A or b. B. C. A, b, or c

Volume of a cylinder with a radius of 13 in and height of 30 in

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Which of the following contains a variable?