Solve the equation 2x-4y=4 for y

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

What is the relationship between all triangles that can be drawn given the same three angles

Which is f(5) for the function –2x2 + 2x - 3?