If x=3 ,then 5x - 9=6 conclusion: x=3 true or false

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.