Atransverse periodic wave occurs on a string described by the expression y=sin(10x + 100 t). what is the amplitude of this wave

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

Solve the radical equation square root 25-40x=x-10

You randomly draw a marble from a bag of marbles that contains 77 blue marbles, 22 green marbles, and 11 red marble. what is \text{p(not draw a blue marble})p(not draw a blue marble)?