At the zoo, all the animal keepers need to have direct telephone line to each other. If there are 10 keepers, how
many lines do they need?

Which statement is true of the circle and the line described by the nonlinear system shown below? (x-4) ^2 + (y-1) ^2 = 9 y = 2x a. the line is tangent to the circle. b. the line is secant to the circle. c. the line does not intersect the circle. d. the line passes through the center of the circle