Multiple Choice What is the directrix of the
parabola with equation x2 = –28y?
A x = 28
B y = -7
y = 7
D y = – 28
E x = 7

The equation of a circle is (x + 4)2 + (y + 6)2 = 16. determine the length of the radius. 10 4 16 8 my flower basket delivers flowers within a 20 mile radius of their store. if this area is represented graphically, with my flower basket located at (5, 2), what is the equation that represents the delivery area? (x - 2)2 + (y - 5)2 = 20 (x - 5)2 + (y - 2)2 = 20 (x + 5)2 + (y + 2)2 = 400 (x - 5)2 + (y - 2)2 = 400

What is the radius of the cone in the diagram? round your answer to the nearest whole number

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2