Which expression can be used to find the sum of the polynomials? (9-3x^2)+(-8x^2+4x+5)

In two fractions have the same denominator but different numerators,which fraction is greater? give an example

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.