Use the threestate model (drug, body, and waste) to define the analytical expressions for the amount of drug that is (a) unabsorbed (D(t)), (b) in the body (B(t)), and (c) digested or metabolized (W(t)) as a function of time. Use the following parameters:

-Initial dose: 50 mg

- Absorption rate: 0.025 min^-1

- Digestion rate: 0.005 min-1

- Metabolic rate: 0.015 min-1

Use MATLAB (or another programming method) to create a showing plot of the amount of drug that is unabsorbed, present in the bloodstream (i.e. body), and has been processed by the body as a function of time (hours) after the initial dose is taken.

-Create a block diagram in Simulink modeling the drug absorption problem. Include your block diagram and a sample output with the assignment.