(7/4x-5)+(2y-3.5)+(-1/4x+5)

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.