Asking for some help

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

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.