So-called two-compartment models are often used to describe drug pharmacokinetics, with the blood being one compartment and the internal organs being the other. If the rate of flow from the blood to the organs is and the rate of metabolism from the organs is , then with certain parameter values the concentration of drug in the organ at time t is given by e−t − e−t
−
.
What is the predicted concentration at time t if the values of and are very close to one another?

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air