A child plays with a yo-yo, dropping it to the floor before pulling it back up to a maximum height of 30 inches. If the yo-yo takes 2 seconds to return to the child's hand after being dropped, which function, f(t), best represents the height of the yo-yo, where t represents the time since the yo-yo has fallen half the distance to the floor?

Which expresions are equivalent to the one below? check all that apply. 5x

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%