What is the average velocity of Runner C for the first 15 seconds?

Find the cosine function that is represented in the graph.

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0