Describe the location of the vertex of the parabola relative to the x-axis. How many zeros does the polynomial have assume p>0

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)