Integrgration by Parts - Center of Mass Suppose R is the region bounded by the graphs of f(x) = sin x and g(x) ) = cos x over the interval [7,3]. Find the center of mass of the region. Assume that the region has a constant density 8. (x, y) Note: your answer should be an ordered pair.

this is incorrect and due at 5:00 please help

A car travels for 3 hours at an average speed of 50 miles per hour. How far has it gone? By using conventions.

Two motorcycles start at the same point. One motorcycle travels 15km due north and stops. The second motorcycle travels 32km due west and stops. Which value is closest to the distance between the motorcycles when they stop?

The physician has ordered cephalexin 250 mg capsule orally every 6 hours for 7 days.  The first dose is September 4th at 18:00 hours.  When is the last scheduled dose?  Identify date and time.