On a number line if point A lies -3 and point B lies on 4, what is the length of AB

Select the lengths in centimeters that would form a right triangle

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

Which is f(5) for the function –2x2 + 2x - 3?