Calculus with Applications Books a la Carte Edition
Calculus with Applications Books a la Carte Edition
11th Edition
ISBN: 9780133864564
Author: Margaret L. Lial; Nathan P. Ritchey; Raymond N. Greenwell
Publisher: Pearson Education
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Chapter 9.4, Problem 17E
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To explain: The reason why it is not necessary to find the value of λ in Lagrange multipliers.

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Chapter 9.4, Problem 16E
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Chapter 9.4, Problem 18E

Chapter 9 Solutions

Calculus with Applications Books a la Carte Edition

Ch. 9.1 - YOUR TURN 1 For the function in Example 1, find...Ch. 9.1 - YOUR TURN 2 For the function in Example 3, find...Ch. 9.1 - YOUR TURN 3 Graph x + 2y + 3z = 12 in the first...Ch. 9.1 - YOUR TURN 4 Find the level curve at a production...Ch. 9.1 - Prob. 1WECh. 9.1 - Prob. 2WECh. 9.1 - Prob. 3WECh. 9.1 - Prob. 4WECh. 9.1 - Prob. 5WECh. 9.1 - Prob. 6WE
Ch. 9.1 - 1. Let f(x, y) = 2x – 3y + 5. Find the...Ch. 9.1 - 2. Let g(x, y) = x2 – 2xy + y3. Find the...Ch. 9.1 - Prob. 3ECh. 9.1 - 4. Let . Find the following. (a) f(10,...Ch. 9.1 - Prob. 5ECh. 9.1 - 6. Let f(x, y) = xex+y. Find the...Ch. 9.1 - Prob. 7ECh. 9.1 - Prob. 8ECh. 9.1 - Graph the first-octant portion of each...Ch. 9.1 - Graph the first-octant portion of each...Ch. 9.1 - Prob. 11ECh. 9.1 - Prob. 12ECh. 9.1 - Prob. 13ECh. 9.1 - Prob. 14ECh. 9.1 - Prob. 15ECh. 9.1 - Graph the level curves in the first quadrant of...Ch. 9.1 - Graph the level curves in the first quadrant of...Ch. 9.1 - Graph the level curves in the first quadrant of...Ch. 9.1 - Prob. 19ECh. 9.1 - Prob. 20ECh. 9.1 - Prob. 21ECh. 9.1 - Prob. 22ECh. 9.1 - Match each equation in Exercises 23–28 with its...Ch. 9.1 - Prob. 24ECh. 9.1 - Match each equation in Exercises 23–28 with its...Ch. 9.1 - Prob. 26ECh. 9.1 - Match each equation in Exercises 23–28 with its...Ch. 9.1 - Match each equation in Exercises 23–28 with its...Ch. 9.1 - 29. Let f(x, y) = 4x2 – 2y2, and find the...Ch. 9.1 - Prob. 30ECh. 9.1 - Prob. 31ECh. 9.1 - Prob. 32ECh. 9.1 - 33. Production Production of a digital camera is...Ch. 9.1 - Production Find the level curve at a production of...Ch. 9.1 - Production Find the level curve at a production of...Ch. 9.1 - Prob. 36ECh. 9.1 - 37. Cost If labor (x) costs $250 per unit,...Ch. 9.1 - Prob. 38ECh. 9.1 - Prob. 39ECh. 9.1 - Prob. 40ECh. 9.1 - Prob. 41ECh. 9.1 - 42. Dinosaur Running An article titled “How...Ch. 9.1 - Prob. 43ECh. 9.1 - 44. Dengue Fever In tropical regions, dengue fever...Ch. 9.1 - Prob. 45ECh. 9.1 - Prob. 46ECh. 9.1 - Prob. 47ECh. 9.1 - Prob. 48ECh. 9.1 - Prob. 49ECh. 9.1 - Prob. 50ECh. 9.1 - 51. Elliptical Templates The holes cut in a roof...Ch. 9.2 - YOUR TURN 1 Let Find and . Ch. 9.2 - Prob. 2YTCh. 9.2 - Prob. 3YTCh. 9.2 - Prob. 4YTCh. 9.2 - Prob. 1WECh. 9.2 - Prob. 2WECh. 9.2 - Prob. 3WECh. 9.2 - Prob. 4WECh. 9.2 - Prob. 5WECh. 9.2 - Prob. 6WECh. 9.2 - Prob. 7WECh. 9.2 - Prob. 8WECh. 9.2 - Prob. 1ECh. 9.2 - Prob. 2ECh. 9.2 - Prob. 3ECh. 9.2 - In Exercises 3–20, find fx(x, y) and fy(x,y). Then...Ch. 9.2 - In Exercises 3–20, find fx(x, y) and fy(x, y)....Ch. 9.2 - Prob. 6ECh. 9.2 - Prob. 7ECh. 9.2 - Prob. 8ECh. 9.2 - Prob. 9ECh. 9.2 - Prob. 10ECh. 9.2 - Prob. 11ECh. 9.2 - Prob. 12ECh. 9.2 - In Exercises 3–20, find fx(x, y) and fy(x, y)....Ch. 9.2 - Prob. 14ECh. 9.2 - Prob. 15ECh. 9.2 - Prob. 16ECh. 9.2 - Prob. 17ECh. 9.2 - Prob. 18ECh. 9.2 - In Exercises 3–20, find fx(x, y) and fy(x, y)....Ch. 9.2 - Prob. 20ECh. 9.2 - Prob. 21ECh. 9.2 - Prob. 22ECh. 9.2 - Prob. 23ECh. 9.2 - Prob. 24ECh. 9.2 - Prob. 25ECh. 9.2 - Prob. 26ECh. 9.2 - Prob. 27ECh. 9.2 - Prob. 28ECh. 9.2 - Prob. 29ECh. 9.2 - Prob. 30ECh. 9.2 - Prob. 31ECh. 9.2 - Prob. 32ECh. 9.2 - Prob. 33ECh. 9.2 - Prob. 34ECh. 9.2 - For the functions defined as follows, find all...Ch. 9.2 - For the functions defined as follows, find all...Ch. 9.2 - Prob. 37ECh. 9.2 - Find and for the following. 38. Ch. 9.2 - Prob. 39ECh. 9.2 - Prob. 40ECh. 9.2 - Find and for the following. 41. Ch. 9.2 - Find and for the following. 42. Ch. 9.2 - Prob. 43ECh. 9.2 - Prob. 44ECh. 9.2 - Business and Economics 45. Manufacturing Cost...Ch. 9.2 - 46. Revenue The revenue from the sale of x units...Ch. 9.2 - Prob. 47ECh. 9.2 - Prob. 48ECh. 9.2 - 49. Marginal Productivity A manufacturer estimates...Ch. 9.2 - 50. Marginal Productivity The production function...Ch. 9.2 - Prob. 51ECh. 9.2 - 52. Marginal Productivity A manufacturer of...Ch. 9.2 - Prob. 53ECh. 9.2 - Prob. 54ECh. 9.2 - Prob. 55ECh. 9.2 - Prob. 56ECh. 9.2 - Prob. 57ECh. 9.2 - Prob. 58ECh. 9.2 - Prob. 59ECh. 9.2 - 60. Health The body mass index (BMI) is a number...Ch. 9.2 - Prob. 61ECh. 9.2 - Prob. 62ECh. 9.2 - 63. Drug Reaction The reaction to x units of a...Ch. 9.2 - Prob. 64ECh. 9.2 - Prob. 66ECh. 9.2 - Prob. 67ECh. 9.2 - Prob. 68ECh. 9.2 - 69. Gravitational Attraction The gravitational...Ch. 9.2 - Prob. 70ECh. 9.2 - Prob. 71ECh. 9.3 - YOUR TURN 1 Find all critical points for Ch. 9.3 - Prob. 2YTCh. 9.3 - Prob. 1WECh. 9.3 - Prob. 2WECh. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Prob. 5ECh. 9.3 - Prob. 6ECh. 9.3 - Prob. 7ECh. 9.3 - Find all points where the functions have any...Ch. 9.3 - Prob. 9ECh. 9.3 - Prob. 10ECh. 9.3 - Prob. 11ECh. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Prob. 15ECh. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Find all points where the functions have any...Ch. 9.3 - Prob. 19ECh. 9.3 - Prob. 20ECh. 9.3 - Figures (a)–(f) show the graphs of the functions...Ch. 9.3 - Prob. 22ECh. 9.3 - Figures (a)–(f) show the graphs of the functions...Ch. 9.3 - Prob. 24ECh. 9.3 - Prob. 25ECh. 9.3 - Prob. 26ECh. 9.3 - 27. Show that f(x, y) = 1 – x4 – y4 has a relative...Ch. 9.3 - 28. Show that D = 0 for f(x, y) = x3 + (x – y)2...Ch. 9.3 - Prob. 29ECh. 9.3 - Prob. 30ECh. 9.3 - Prob. 31ECh. 9.3 - 32. In Exercise 9 of Section 1.3, we found the...Ch. 9.3 - Prob. 33ECh. 9.3 - 34. Profit Suppose that the profit (in hundreds of...Ch. 9.3 - 35. Labor Costs Suppose the labor cost (in...Ch. 9.3 - 36. Cost The total cost (in dollars) to produce x...Ch. 9.3 - 37. Revenue The total revenue (in hundreds of...Ch. 9.3 - 38. Profit The profit (in thousands of dollars)...Ch. 9.3 - Prob. 39ECh. 9.3 - 40. Political Science The probability that a...Ch. 9.3 - Prob. 42ECh. 9.4 - YOUR TURN 1 Find the minimum value of f(x, y) = x2...Ch. 9.4 - Prob. 1WECh. 9.4 - Prob. 2WECh. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - Prob. 4ECh. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - Prob. 6ECh. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - Prob. 8ECh. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - Find the relative maxima or minima in Exercises...Ch. 9.4 - 11. Find positive numbers x and y such that x + y...Ch. 9.4 - 12. Find positive numbers x and y such that x + y...Ch. 9.4 - Prob. 13ECh. 9.4 - 14. Find three positive numbers whose sum is 240...Ch. 9.4 - Prob. 15ECh. 9.4 - Prob. 16ECh. 9.4 - Prob. 17ECh. 9.4 - 18. Show that the function f(x, y) = xy2 in...Ch. 9.4 - 19. Show that the function f(x, y) = 8x2y in...Ch. 9.4 - Prob. 20ECh. 9.4 - 21. Consider the problem of minimizing f(x, y) =...Ch. 9.4 - Prob. 22ECh. 9.4 - Business and Economics Utility Maximize each of...Ch. 9.4 - Business and Economics Utility Maximize each of...Ch. 9.4 - Business and Economics Utility Maximize each of...Ch. 9.4 - Prob. 26ECh. 9.4 - 27. Maximum Area for Fixed Expenditure Because of...Ch. 9.4 - 28. Maximum Area for Fixed Expenditure To enclose...Ch. 9.4 - Prob. 29ECh. 9.4 - 30. Profit The profit from the sale of x units of...Ch. 9.4 - 31. Production A manufacturing firm estimates that...Ch. 9.4 - Prob. 32ECh. 9.4 - Prob. 33ECh. 9.4 - Prob. 34ECh. 9.4 - Prob. 35ECh. 9.4 - Prob. 36ECh. 9.4 - Prob. 37ECh. 9.4 - Prob. 38ECh. 9.4 - Prob. 39ECh. 9.4 - Prob. 40ECh. 9.4 - 41. Container Construction RD Enterprises is...Ch. 9.4 - Social Sciences 42. Political Science The...Ch. 9.5 - YOUR TURN 1 For the function , find (a) dz, and...Ch. 9.5 - Prob. 2YTCh. 9.5 - Prob. 3YTCh. 9.5 - Prob. 1WECh. 9.5 - Prob. 2WECh. 9.5 - Prob. 3WECh. 9.5 - Prob. 4WECh. 9.5 - Evaluate dz using the given information. 1. Ch. 9.5 - Evaluate dz using the given information. 2. Ch. 9.5 - Evaluate dz using the given information. 3. Ch. 9.5 - Prob. 4ECh. 9.5 - Evaluate dz using the given information. 5. Ch. 9.5 - Evaluate dz using the given information. 6. Ch. 9.5 - Prob. 7ECh. 9.5 - Prob. 8ECh. 9.5 - Use the total differential to approximate each...Ch. 9.5 - Prob. 10ECh. 9.5 - Prob. 11ECh. 9.5 - Prob. 12ECh. 9.5 - Use the total differential to approximate each...Ch. 9.5 - Use the total differential to approximate each...Ch. 9.5 - Prob. 15ECh. 9.5 - Prob. 16ECh. 9.5 - 17. Volume of a Coating An industrial coaling 0.1...Ch. 9.5 - Prob. 18ECh. 9.5 - Prob. 19ECh. 9.5 - Prob. 20ECh. 9.5 - Prob. 21ECh. 9.5 - Prob. 22ECh. 9.5 - 23. Blood Volume In Exercise 58 of Section 2 in...Ch. 9.5 - Prob. 24ECh. 9.5 - Life Span As we saw in Exercise 62 of Section 9.2,...Ch. 9.5 - Prob. 26ECh. 9.5 - Prob. 27ECh. 9.5 - Prob. 28ECh. 9.5 - Prob. 29ECh. 9.5 - Prob. 30ECh. 9.5 - Prob. 31ECh. 9.5 - Prob. 32ECh. 9.5 - Prob. 33ECh. 9.5 - Prob. 34ECh. 9.5 - Prob. 35ECh. 9.6 - YOUR TURN 1 Evaluate Ch. 9.6 - YOUR TURN 2 Evaluate and then integrate with the...Ch. 9.6 - Prob. 3YTCh. 9.6 - Prob. 4YTCh. 9.6 - Prob. 5YTCh. 9.6 - Prob. 1WECh. 9.6 - Prob. 2WECh. 9.6 - Prob. 3WECh. 9.6 - Prob. 4WECh. 9.6 - Prob. 5WECh. 9.6 - Prob. 6WECh. 9.6 - Prob. 1ECh. 9.6 - Evaluate each integral. 2. Ch. 9.6 - Prob. 3ECh. 9.6 - Prob. 4ECh. 9.6 - Prob. 5ECh. 9.6 - Evaluate each integral. 6. Ch. 9.6 - Prob. 7ECh. 9.6 - Prob. 8ECh. 9.6 - Prob. 9ECh. 9.6 - Prob. 10ECh. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Prob. 14ECh. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Prob. 16ECh. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Prob. 18ECh. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Evaluate each iterated integral. (Many of these...Ch. 9.6 - Prob. 21ECh. 9.6 - Find each double integral over the rectangular...Ch. 9.6 - Find each double integral over the rectangular...Ch. 9.6 - Prob. 24ECh. 9.6 - Find each double integral over the rectangular...Ch. 9.6 - Find each double integral over the rectangular...Ch. 9.6 - Find each double integral over the rectangular...Ch. 9.6 - Prob. 28ECh. 9.6 - Find the volume under the given surface and above...Ch. 9.6 - Find the volume under the given surface and above...Ch. 9.6 - Prob. 31ECh. 9.6 - Find the volume under the given surface and above...Ch. 9.6 - Find the volume under the given surface and above...Ch. 9.6 - Prob. 34ECh. 9.6 - Find the volume under the given surface and above...Ch. 9.6 - Find the volume under the given surface and above...Ch. 9.6 - Prob. 37ECh. 9.6 - Although it is often true that a double integral...Ch. 9.6 - Prob. 39ECh. 9.6 - Evaluate each double integral. 40. Ch. 9.6 - Prob. 41ECh. 9.6 - Prob. 42ECh. 9.6 - Prob. 43ECh. 9.6 - Use the region R with the indicated boundaries to...Ch. 9.6 - Prob. 45ECh. 9.6 - Prob. 46ECh. 9.6 - Prob. 47ECh. 9.6 - Use the region R with the indicated boundaries to...Ch. 9.6 - Prob. 49ECh. 9.6 - Prob. 50ECh. 9.6 - Prob. 51ECh. 9.6 - Use the region R with the indicated boundaries to...Ch. 9.6 - Use the region R with the indicated boundaries to...Ch. 9.6 - Use the region R with the indicated boundaries to...Ch. 9.6 - Prob. 55ECh. 9.6 - Prob. 56ECh. 9.6 - Evaluate each double integral. If the function...Ch. 9.6 - Prob. 58ECh. 9.6 - Prob. 59ECh. 9.6 - Prob. 60ECh. 9.6 - The idea of the average value of a function,...Ch. 9.6 - Prob. 62ECh. 9.6 - Prob. 63ECh. 9.6 - Prob. 64ECh. 9.6 - 65. Packaging The manufacturer of a fruit juice...Ch. 9.6 - Prob. 66ECh. 9.6 - 67. Average Production A production function is...Ch. 9.6 - 68. Average Profit The profit (in dollars) from...Ch. 9.6 - 69. Average Revenue A company sells two products....Ch. 9.6 - Prob. 70ECh. 9.6 - Prob. 71ECh. 9 - Prob. 1RECh. 9 - Prob. 2RECh. 9 - Prob. 3RECh. 9 - Prob. 4RECh. 9 - Prob. 5RECh. 9 - Prob. 6RECh. 9 - Prob. 7RECh. 9 - Prob. 8RECh. 9 - Prob. 9RECh. 9 - Prob. 10RECh. 9 - Prob. 11RECh. 9 - Prob. 12RECh. 9 - Prob. 13RECh. 9 - Prob. 14RECh. 9 - Prob. 15RECh. 9 - Prob. 16RECh. 9 - Prob. 17RECh. 9 - Find (–1, 2) and f(6, –3) for the...Ch. 9 - Prob. 19RECh. 9 - Prob. 20RECh. 9 - Prob. 21RECh. 9 - Prob. 22RECh. 9 - Prob. 23RECh. 9 - Prob. 24RECh. 9 - Prob. 25RECh. 9 - Prob. 26RECh. 9 - Prob. 27RECh. 9 - Prob. 28RECh. 9 - Prob. 29RECh. 9 - Prob. 30RECh. 9 - Prob. 31RECh. 9 - Prob. 32RECh. 9 - Prob. 33RECh. 9 - Prob. 34RECh. 9 - Prob. 35RECh. 9 - Prob. 36RECh. 9 - Prob. 37RECh. 9 - Prob. 38RECh. 9 - Prob. 39RECh. 9 - Prob. 40RECh. 9 - Prob. 41RECh. 9 - Prob. 42RECh. 9 - Prob. 43RECh. 9 - Prob. 44RECh. 9 - Prob. 45RECh. 9 - Prob. 46RECh. 9 - Prob. 47RECh. 9 - Prob. 48RECh. 9 - Prob. 49RECh. 9 - Prob. 50RECh. 9 - Prob. 51RECh. 9 - Prob. 52RECh. 9 - Prob. 53RECh. 9 - Prob. 54RECh. 9 - Prob. 55RECh. 9 - Prob. 56RECh. 9 - Prob. 57RECh. 9 - Prob. 58RECh. 9 - Prob. 59RECh. 9 - Prob. 60RECh. 9 - Prob. 61RECh. 9 - Prob. 62RECh. 9 - Prob. 63RECh. 9 - Prob. 64RECh. 9 - Prob. 65RECh. 9 - Prob. 66RECh. 9 - Prob. 67RECh. 9 - Prob. 68RECh. 9 - Prob. 69RECh. 9 - Prob. 70RECh. 9 - Prob. 71RECh. 9 - Prob. 72RECh. 9 - Prob. 73RECh. 9 - Prob. 74RECh. 9 - Prob. 75RECh. 9 - Prob. 76RECh. 9 - Prob. 77RECh. 9 - Prob. 78RECh. 9 - Prob. 79RECh. 9 - Prob. 80RECh. 9 - Prob. 81RECh. 9 - Prob. 82RECh. 9 - Prob. 83RECh. 9 - Prob. 84RECh. 9 - Prob. 85RECh. 9 - Prob. 86RECh. 9 - Prob. 87RECh. 9 - Prob. 88RECh. 9 - Prob. 89RECh. 9 - Prob. 90RECh. 9 - Prob. 91RECh. 9 - Prob. 92RECh. 9 - Prob. 93RECh. 9 - Prob. 94RECh. 9 - Prob. 95RECh. 9 - Prob. 96RECh. 9 - 97. Profit The total profit from 1 acre of a...Ch. 9 - Prob. 98RECh. 9 - Prob. 99RECh. 9 - Prob. 100RECh. 9 - Prob. 101RECh. 9 - Prob. 102RECh. 9 - Prob. 103RECh. 9 - Prob. 104RECh. 9 - Prob. 105RECh. 9 - Prob. 106RE
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