What multiplies to 72 and adds to -6

Graph the linear function using the slooe and y intercept

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters

Use the squared identities to simplify sin^2x cos^2x