What is the value of cos 0 given that (-2, -3) is a point on the terminal side of 0?

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Factor this polynomial completely x^2-64

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.