The number of bacteria in a refrigerated food product is given by N(T) = 227² - 87T +47,4

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Answered: The number of bacteria in a…

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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The deck of a bridge is suspended 285 feet above a river. If a pebble falls off the side of the bridge, the height, in feet, of the pebble above the water surface after t seconds is given by y = 285 − 16t2. (a) Find the average velocity (in ft/s) of the pebble for the time period beginning when t = 2 and lasting the following amount of time. (i) 0.1 seconds (ii)0.05 seconds (iii)0.01 seconds (b) Estimate the instantaneous velocity (in ft/s) of the pebble after 2 seconds.
A thin bar composed of aluminum is 20 cm long. It is initially at a uniform temperature of 30° C. At time t = 0, the left end of the bar (x = 0) is placed in a bath at a constant temperature of 20° C. The right end of the bar (x : constant 40° C. 20 cm) is placed in a bath kept at a (a) Derive the temperature function of the bar for any point in the bar at any time. How does the temperature at the center of the bar change with time?
A tank contains 1000-gallon of pure water. Starting at time t = 0, a solution containing 0.2 lb of salt per gallon enters 10 gallons per minute and the well-stirred solution is withdrawn at a rate of 5 gallons per minute. Set up the initial value problem for the amount of salt, Q(t), in the tank as a function of t. Sove for Q(t).

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The number of bacteria in a refrigerated food product is given by N(T) = 22T² - 87T +47, 4