Which operation is not closed for polynomials? a) −(x2 + 4x + 5)(8x2 + 3x + 4) b) (7x2 + 2x + 3) + (3x2 − 5x + 4) c) (x2 + 2x + 5) − (x2 − 2x + 9) d) (x3 + 4x − 5)/(x5 − 2x + 2)

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?

Which set of side lengths form a right side? a) 3ft,6ft,5ft b)50 in,48in,14in c)53m,48m,24m d)8cm,17cm,14cm