During a session of interval training, an Olympic swimmer records her heart rate at the end of each interval in an application program on her iPhone. The application program provides the swimmer with a graph that consists of the data she entered. Before the swimmer emails the information to her coach, she must also create a table of her records. Use the graph from the application on the swimmer’s iPhone to choose the table that best represents the swimmer’s heart rate records.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?

Solve 13 + w/7= -18 (w/7 is a fraction)