Oil Pressure The pressure of oil in a reservoir tends to drop with time. Engineers found that

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Oil Pressure The pressure of oil in a reservoir tends to drop with time. Engineers found that the change in pressure is modeled by f (t) = 1.06t3 - 24.6t2 + 180t for t (in years) in the interval [0, 15].

(a) What was the change after 2 yr?

(b) For what time periods, to the nearest tenth of a year, is the amount of change in pressure increasing? decreasing? Use a graph to decide.

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College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

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