Question: How does Decartes’ Rule of Signs help you to know your solutions are correct? Why is the complex solution column always an even number? Show how you would use Descartes’ Rule for the type and number of solutions of the following polynomial: x^3 – 5x^2 + 16x – 80.

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