What is the area of the SHADED sector of the circle?

180 pi units2
40 pi units2
400 pi units2
20 pi units

Ihave trouble finding the nth term of a linear sequence

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?