Which two equations would be most appropriately solved by using the quadratic formula?

select each correct answer.

(x−1)2=4

0.25x2+0.8x−8=0

3x2−4x=15

(x−6)(x+9)=0

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

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2