+52 The vertex of the parabola described by the equation$y=-3x^2-30x-81$ is (m,n). What is n?
Let be an ordered pair of real numbers that satisfies the equation$x^2+y^2=14x+48y$ . What is the maximum value of y?
The quadratic equation $ax^2+20x+c=0$ has exactly one solution. If $a+c=29$, and $a
The quadratic $x^2-3x+1$ can be written in the form$(x+b)^2+c$ , where b and c are constants. What is B+C?
