Your cardiac index is your hearts output, in liters of blood per minute, divided by your
Chapter 7, Problem 96(choose chapter or problem)
Your cardiac index is your hearts output, in liters of blood per minute, divided by your bodys surface area, in square meters. The cardiac index, C(x), can be modeled by C(x) = 7.644 1 4 x , 10 x 80, where x is an individuals age, in years. The graph of the function is shown. Use the function to solve Exercises 9596. liters per minute Cardiac Index square meters y x Age 10 20 30 40 50 60 70 80 90a. Find the cardiac index of an 80-year-old. Express thedenominator in simplified radical form and reduce thefraction.b. Use the form of the answer in part (a) and a calculatorto express the cardiac index to the nearest hundredth.Identify your solution as a point on the graph.
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