2. Complete parts a through f below to find nonnegative numbers x and y that satisfy the given requirements. Give the optimum value of P. x+ y = 105 and P =x*y is maximized a. Solve x + y = 105 for y. y% = b. Substitute the result from part a into the equation P = xy for the variable that is to be maximized. P = c. Find the domain of the function P found in part b. (Simplify your answer. Type your answer in interval notation.) dP = 0. d. Find dx Solve the equation dx dP dx Solve the equation. (Use a comma to separate answers as needed.) e. Evaluate P at any solutions found in part d, as well as the endpoints of the domain found in part c. Find P(0). P(0) = (Simplify your answer.) Determine P(70). P(70) = (Simplify your answer.) Find P(105). P(105) = (Simplify your answer.) f. Give the maximum value of P, as well as the two numbers x and y for which xy is that value. The maximum value of P is The values of x and y are x = and y =

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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2. Complete parts a through f below to find nonnegative numbers x and y that satisfy the given requirements. Give the
optimum value of P.
x+y = 105 and P =xy is maximized
a. Solve x + y = 105 for y.
y =
b. Substitute the result from part a into the equation P = xy for the variable that is to be maximized.
P =
c. Find the domain of the function P found in part b.
(Simplify your answer. Type your answer in interval notation.)
dP
= 0.
dx
dP
d. Find
Solve the equation
dx
eo co
dP
dx
Solve the equation.
(Use a comma to separate answers as needed.)
e. Evaluate P at any solutions found in part d, as well as the endpoints of the domain found in part c.
Find P(0).
P(0) =
(Simplify your answer.)
Determine P(70).
P(70) =
(Simplify your answer.)
Find P(105).
P(105) =
(Simplify your answer.)
f. Give the maximum value of P, as well as the two numbers x and y for which xy is that value.
The maximum value of P is
The values of x and y are x =
and y =
3. A fence must be built to enclose a rectangular area of 20,000 ft2. Fencing material costs $3 per foot for the two sides facing
north and south and $6 per foot for the other two sides. Find the cost of the least expensive fence.
The cost of the least expensive fence is $
(Simplify your answer.)
https://xlitemprod.pearsoncmg.com/api/v1/print/math
213
Transcribed Image Text:2. Complete parts a through f below to find nonnegative numbers x and y that satisfy the given requirements. Give the optimum value of P. x+y = 105 and P =xy is maximized a. Solve x + y = 105 for y. y = b. Substitute the result from part a into the equation P = xy for the variable that is to be maximized. P = c. Find the domain of the function P found in part b. (Simplify your answer. Type your answer in interval notation.) dP = 0. dx dP d. Find Solve the equation dx eo co dP dx Solve the equation. (Use a comma to separate answers as needed.) e. Evaluate P at any solutions found in part d, as well as the endpoints of the domain found in part c. Find P(0). P(0) = (Simplify your answer.) Determine P(70). P(70) = (Simplify your answer.) Find P(105). P(105) = (Simplify your answer.) f. Give the maximum value of P, as well as the two numbers x and y for which xy is that value. The maximum value of P is The values of x and y are x = and y = 3. A fence must be built to enclose a rectangular area of 20,000 ft2. Fencing material costs $3 per foot for the two sides facing north and south and $6 per foot for the other two sides. Find the cost of the least expensive fence. The cost of the least expensive fence is $ (Simplify your answer.) https://xlitemprod.pearsoncmg.com/api/v1/print/math 213
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