Two numbers are in the ratio of 3 to 4. if 9 is subtracted from each, they are in a ratio of 3 to 5. find the two numbers

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

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

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?