Determine whether each expression is a polynomial 1. f(x)=-5x^3 + x - 3/x
2. g(x)=25x^2 - x^3 + x^5

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ¿cuantos kilogramos de fruta compro?

Can someone show me step by step how to do this?