Find the measure of z. a. 80° b. 83 ° c. 70 ° d. 87 °

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

Ineed me i stuck and i don’t want to get it wrong

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2