-2x + 9x5 + 1 - 9x2
What’s the answer to this someone help plz

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me