Question

1. The concentration C(mg/ml)of a drug in a patient's bloodstream t hours after injection into muscle tissue is modeled by
C = 3t/27+t^3 Use differential to approximate the change in the concentration of the drug in the blood when t changes t = 1.0 to 1.5 hrs.
2. A retailer has determined that the monthly sales x of a watch is 150 units when the price is $50, but decreases to 120 units when the price is $60. Assume that the demand is linear function of the price. Find the revenue R as a function of x and approximate the change in revenue for for one - unit increase in sales when x = 141. 3. What is the radius of curvature at poi t (-1, -1) of the curve 4x - y^2 = 0 ?

Answer 1

Answer:-After an antibiotic taken is taken, the concentration of the antibiotic in the bloodstream is modeled by the function where the time is measured in hours and is measured in g/mL. What is the maximum concentration of the antibiotic during the first hours?

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