Topology
2nd Edition
ISBN: 9780134689517
Author: Munkres, James R.
Publisher: Pearson,
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Chapter 1.4, Problem 8.3E
To determine
To show:
If
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6) A farmer has 60 acres on which to plant oats or corn. Each acre of oats requires 100 lbs of fertilizer and 1 hour
of labor. Each acre of corn requires 50 lbs of fertilizer and 2 hours of labor. The farmer has 5000 lbs of
fertilizer and 100 hours available for labor. If the profit is $60 from each acre of oats and $100 from each acre
of corn, what planting combination will produce the greatest total profit?
a) Fill in the following chart to help organize the information given in the problem:
Oats
Labor
Fertilizer
Land
Profit
b) Write down the question of interest.
Corn
Available
c) Define variables to answer the question of interest. Call these x and y.
d) Write the objective function to answer the question of interest.
e) List any constraints given in the problem.
I need help with number 5.
3) Use the following system of linear inequalities graphed below to answer the questions.
a) Use the graph to write the symbolic form of the system
of linear inequalities.
b) Is (-4,2) a solution to the system? Explain.
5
-7
-5
-3
-2
0
2
3
4
$
6
-2
-6
-7
Chapter 1 Solutions
Topology
Ch. 1.1 - Check the distributive laws for and and De Morgans...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...
Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Prob. 2.11ECh. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Determine which of the following statements are...Ch. 1.1 - Write the contrapositive and converse of the...Ch. 1.1 - Do the same for the statement If x0, then x2x0.Ch. 1.1 - Let A and B be sets of real numbers. Write the...Ch. 1.1 - Let A and B be sets of real numbers. Write the...Ch. 1.1 - Let A and B be sets of real numbers. Write the...Ch. 1.1 - Let A and B be sets of real numbers. Write the...Ch. 1.1 - Let A be a nonempty collection of sets. Determine...Ch. 1.1 - Write the contrapositive of each of the statements...Ch. 1.1 - Write the contrapositive of each of the statements...Ch. 1.1 - Write the contrapositive of each of the statements...Ch. 1.1 - Write the contrapositive of each of the statements...Ch. 1.1 - Prob. 7ECh. 1.1 - Prob. 8ECh. 1.1 - Formulate and prove DeMorgans laws for arbitrary...Ch. 1.1 - Let denote the set of real numbers. For each of...Ch. 1.1 - Let denote the set of real numbers. For each of...Ch. 1.1 - Let denote the set of real numbers. For each of...Ch. 1.1 - Let denote the set of real numbers. For each of...Ch. 1.1 - Let denote the set of real numbers. For each of...Ch. 1.2 - Let f:AB. Let A0AandB0B. Show that A0f1(f(A0)) and...Ch. 1.2 - Prob. 1.2ECh. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Prob. 2.5ECh. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Let f:AB and let AiAandBiBfori=0andi=1. Show that...Ch. 1.2 - Show that b, c, f, and g of Exercise 2 hold for...Ch. 1.2 - Show that b, c, f, and g of Exercise 2 hold for...Ch. 1.2 - Show that b, c, f, and g of Exercise 2 hold for...Ch. 1.2 - Show that b, c, f, and g of Exercise 2 hold for...Ch. 1.2 - Let f:AB and g:BC. If C0C, show that...Ch. 1.2 - Let f:AB and g:BC. If f and g are injective, show...Ch. 1.2 - Let f:AB and g:BC. If gf is injective, what can...Ch. 1.2 - Let f:AB and g:BC. If f and g are surjective, show...Ch. 1.2 - Let f:AB and g:BC. If gf is surjective, what can...Ch. 1.2 - Let f:AB and g:BC. Summarize your answers to b-e...Ch. 1.2 - In general, let us denote the identity function...Ch. 1.2 - In general, let us denote the identity function...Ch. 1.2 - In general, let us denote the identity function...Ch. 1.2 - In general, let us denote the identity function...Ch. 1.2 - In general, let us denote the identity function...Ch. 1.2 - Let f: be the function f(x)=x3x. By restricting...Ch. 1.3 - Define two points (x0,y0) and (x1,y1) of the plane...Ch. 1.3 - Let C be a relation on a set A. If A0A, define the...Ch. 1.3 - Here is a proof that every relation C that is both...Ch. 1.3 - Let f:AB be a surjective function. Let us define a...Ch. 1.3 - Let f:AB be a surjective function. Let us define a...Ch. 1.3 - Let S and S be the following subsets of the plane:...Ch. 1.3 - Let S and S be the following subsets of the plane:...Ch. 1.3 - Let S and S be the following subsets of the plane:...Ch. 1.3 - Define a relation on the plane by setting...Ch. 1.3 - Show that the restriction of an order relation is...Ch. 1.3 - Check that the relation defined in Example 7 is an...Ch. 1.3 - Check that the dictionary order is an order...Ch. 1.3 - a Show that the map f:(1,1) of Example 9 is order...Ch. 1.3 - Prob. 10.2ECh. 1.3 - Prob. 11ECh. 1.3 - Prob. 12ECh. 1.3 - Prove the following: Theorem. If an ordered set A...Ch. 1.3 - If C is a relation on a set A, define a new...Ch. 1.3 - Assume that the real line has the least upper...Ch. 1.4 - Prove the following laws of algebra for , using...Ch. 1.4 - Prove the following laws of algebra for , using...Ch. 1.4 - Prob. 1.3ECh. 1.4 - Prob. 1.4ECh. 1.4 - Prob. 1.5ECh. 1.4 - Prob. 1.6ECh. 1.4 - Prove the following laws of algebra for , using...Ch. 1.4 - Prove the following laws of algebra for , using...Ch. 1.4 - Prob. 1.9ECh. 1.4 - Prob. 1.10ECh. 1.4 - Prob. 1.11ECh. 1.4 - Prob. 1.12ECh. 1.4 - Prob. 1.13ECh. 1.4 - Prob. 1.14ECh. 1.4 - Prob. 1.15ECh. 1.4 - Prob. 1.16ECh. 1.4 - Prove the following laws of algebra for , using...Ch. 1.4 - Prob. 1.18ECh. 1.4 - Prob. 1.19ECh. 1.4 - Prob. 1.20ECh. 1.4 - Prob. 2.1ECh. 1.4 - Prob. 2.2ECh. 1.4 - Prob. 2.3ECh. 1.4 - Prob. 2.4ECh. 1.4 - Prob. 2.5ECh. 1.4 - Prob. 2.6ECh. 1.4 - Prob. 2.7ECh. 1.4 - Prob. 2.8ECh. 1.4 - Prob. 2.9ECh. 1.4 - Prob. 2.10ECh. 1.4 - Prob. 2.11ECh. 1.4 - Prob. 3ECh. 1.4 - Prob. 4.1ECh. 1.4 - Prob. 4.2ECh. 1.4 - Prove the following properties of and+: a...Ch. 1.4 - Prob. 6ECh. 1.4 - Prob. 7ECh. 1.4 - Prob. 8.1ECh. 1.4 - Prob. 8.2ECh. 1.4 - Prob. 8.3ECh. 1.4 - a Show that every nonempty subset of that is...Ch. 1.4 - Prob. 10.1ECh. 1.4 - Prob. 10.2ECh. 1.4 - Prob. 10.3ECh. 1.4 - Prob. 10.4ECh. 1.4 - Prob. 11.1ECh. 1.4 - Prob. 11.2ECh. 1.4 - Prob. 11.3ECh. 1.4 - Prob. 11.4ECh. 1.5 - Show there is a bijective correspondence of AB...Ch. 1.5 - a Show that if n1 there is bijective...Ch. 1.5 - b Given the indexed family {A1,A2,}, let...Ch. 1.5 - Let A=A1A2 and B=B1B2. a Show that if BiAi for all...Ch. 1.5 - Let A=A1A2 and B=B1B2. b Show the converse of a...Ch. 1.5 - Let A=A1A2 and B=B1B2. c Show that if A is...Ch. 1.5 - Prob. 3.4ECh. 1.5 - Let m,n+. Let X. a If mn, find an injective map...Ch. 1.5 - Let m,n+. Let X. b Find a bijective map...Ch. 1.5 - Let m,n+. Let X. c Find an injective map h:XnX.Ch. 1.5 - Let m,n+. Let X. d Find a bijective map k:XnXX.Ch. 1.5 - Prob. 4.5ECh. 1.5 - Prob. 4.6ECh. 1.5 - Which of the following subsets of can be...Ch. 1.6 - a Make a list of all the injective maps...Ch. 1.6 - Prob. 2ECh. 1.6 - Prob. 3ECh. 1.6 - Prob. 4.1ECh. 1.6 - Prob. 4.2ECh. 1.6 - If AB is finite, does it follow that A and B are...Ch. 1.6 - a Let A={1,,n}. Show there is a bijection of P(A)...Ch. 1.6 - b Show that if A is finite, then P(A) is finite.Ch. 1.6 - Prob. 7ECh. 1.7 - Show that is countably infinite.Ch. 1.7 - Show that the maps f and g of Examples 1 and 2 are...Ch. 1.7 - Prob. 3ECh. 1.7 - a A real number x is said to be algebraic over the...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Determine, for each of the following sets, whether...Ch. 1.7 - Prob. 5.9ECh. 1.7 - Prob. 5.10ECh. 1.7 - We say that two sets A and B have the same...Ch. 1.7 - We say that two sets A and B have the same...Ch. 1.7 - Show that the sets D and E of Exercise 5 have the...Ch. 1.7 - Let X denote the two-element set {0,1}; let B be...Ch. 1.7 - a The formula...Ch. 1.8 - Prob. 1ECh. 1.8 - Prob. 2ECh. 1.8 - Prob. 3ECh. 1.8 - Prob. 4ECh. 1.8 - Prob. 5ECh. 1.8 - Prob. 6ECh. 1.8 - Prob. 7ECh. 1.8 - Prob. 8ECh. 1.9 - Define an injective map f:+X, where X is the...Ch. 1.9 - Prob. 2ECh. 1.9 - Prob. 3ECh. 1.9 - There was a theorem in 7 whose proof involved an...Ch. 1.9 - a Use the choice axiom to show that if f:AB is...Ch. 1.9 - Let A and B be two nonempty sets. If there is an...Ch. 1.9 - Prob. 8ECh. 1.10 - Prob. 1ECh. 1.10 - Both {1,2}+ and +{1,2} are well-ordered in the...Ch. 1.10 - a Let denote the set of negative integers in the...Ch. 1.10 - Show the well-ordering theorem implies the choice...Ch. 1.10 - Prob. 6ECh. 1.10 - a Let A1 and A2 be disjoint sets, well-ordered by...Ch. 1.10 - Let A and B be two sets. Using the well-ordering...
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