Select the correct product. (x 2 + 4x + 8)(2x - 1) a) 2x3 + 7x2 + 12x - 8 b) 2x3 - 7x2 - 12x - 8 c) x2 + 6x + 7 d) x2 + 8x - 8

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

In a right triangle δabc, the length of leg ac = 5 ft and the hypotenuse ab = 13 ft. find: b the length of the angle bisector of angle ∠a.