Uf a čertain drug in a patient's bloodstream t hr after injection is given by the following function. 0.2t C(t) = 2+9 (a) Find the rate at which the concentration of the drug is changing with respect to time. C'(t) = (b) How fast is the concentration changing 1/2 hr, 3, and 9 hr after the injection? (Round your answers to four decimal places.) after 1/2 hr percent/hr after 3 hr percent/hr after 9 hr percent/hr Need Help? Read It Watch It Submit Answer

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.