The average pollen count in a city on day x of the pollen season is P(x) = 8x−0.2x2 (for 0 < x < 40). On which day is the pollen count highest?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The average pollen count in a city on day x of the pollen season is P(x) = 8x−0.2x2 (for 0 < x < 40). On which day is the pollen count highest?

 In problem 8, how many trees should he plant per acre to maximize her harvest? 

The reproduction function for the whale is estimated to be f(p) = −0.0004p2 + 1.06p, where p and f (p) are in thousands. Find the population that gives the maximum sustainable yield, and the size of the yield.

Find the absolute extreme values of the following function on th given interval:f(x)=4x5−5x4 on[0,2]

Sketch a graph of the function (label the axes) f(x)=x4 +4x3 +15

Find the local maximum and minimum and points of infeltion of the following function:f(x)=x4 +4x3 +15

 Make a sign diagram of the first derivative and find the intervals of increase and decrease of the following function:f(x)=x4 +4x3 +15

Use inplicit differentiation to find dy/dx :x1 + y1 = 5

Graph the functions y = 5x and y = (51)x on the same set of axes. Label the axes and the graph.

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