Mathematics All Around (6th Edition)
6th Edition
ISBN: 9780134506470
Author: Pirnot
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4.3, Problem 30E
Communicating Mathematics
In the incidence matrices in Exercises 23 to 26, notice that there are no 1s in the A row-A column, B row-B column, C row-C column, or D row-D column positions. Why is this? Can you think of a real-life application where 1s might occur in these positions?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Question 7: Find a matrix Ps which can be used as a premultiplier an arbitrary 5 x n matrix A to
effect the following changes in A:
Row 1 becomes Row 3 + 2 Row 5
Row 2 becomes Row 5+ Row I
Row 3 becomes 2 Row 2 + 3 Row 4
Row 4 becomes Row 1 + Row 5
Row 5 becomes Row 2 + Row 3 + Row 4
"P3
Question 3: Construct the accessibility matrix Passociated with
the following graphs, and compute P2 and identify each at the
various two-step paths in the graph
Ps
P₁
P₂
A cable television company estimates that with x thousand subscribers, its monthly revenue and cost (in thousands of dollars) are given by the following equations.
R(x) = 45x - 0.24x2 C(x) = 257 + 13x
Chapter 4 Solutions
Mathematics All Around (6th Edition)
Ch. 4.1 - In Exercise 1-6, determine whether the graph is...Ch. 4.1 - In Exercise 1-6, determine whether the graph is...Ch. 4.1 - In Exercise 1-6, determine whether the graph is...Ch. 4.1 - In Exercise 1-6, determine whether the graph is...Ch. 4.1 - In Exercise 1-6, determine whether the graph is...Ch. 4.1 - In Exercise 1-6, determine whether the graph is...Ch. 4.1 - In Exercises 7-12, use Eulers theorem to decide...Ch. 4.1 - In Exercises 7-12, use Eulers theorem to decide...Ch. 4.1 - In Exercises 7-12, use Eulers theorem to decide...Ch. 4.1 - In Exercises 7-12, use Eulers theorem to decide...
Ch. 4.1 - In Exercises 7-12, use Eulers theorem to decide...Ch. 4.1 - In Exercises 7-12, use Eulers theorem to decide...Ch. 4.1 - In Exercise 13-16, if the given graph is Eulerian,...Ch. 4.1 - In Exercise 13-16, if the given graph is Eulerian,...Ch. 4.1 - In Exercise 13-16, if the given graph is Eulerian,...Ch. 4.1 - In Exercise 13-16, if the given graph is Eulerian,...Ch. 4.1 - In Exercises 17-24, try to give an example of each...Ch. 4.1 - Prob. 18ECh. 4.1 - In Exercises 17-24, try to give an example of each...Ch. 4.1 - In Exercises 17-24, try to give an example of each...Ch. 4.1 - In Exercises 17-24, try to give an example of each...Ch. 4.1 - Prob. 22ECh. 4.1 - Prob. 23ECh. 4.1 - Prob. 24ECh. 4.1 - In Exercise 25-28, remove one edge to make the...Ch. 4.1 - Prob. 26ECh. 4.1 - Prob. 27ECh. 4.1 - In Exercise 25-28, remove one edge to make the...Ch. 4.1 - In Exercise 29-32, try to redraw the given graph...Ch. 4.1 - In Exercise 29-32, try to redraw the given graph...Ch. 4.1 - In Exercise 29-32, try to redraw the given graph...Ch. 4.1 - In Exercise 29-32, try to redraw the given graph...Ch. 4.1 - Finding an efficient route. A taxi driver wants to...Ch. 4.1 - Finding an efficient route. Repeat Exercises 33...Ch. 4.1 - Exercise 35 and 36 are similar to DUCK tour...Ch. 4.1 - Exercise 35 and 36 are similar to DUCK tour...Ch. 4.1 - Represent the maps given in Exercises 37-40 by...Ch. 4.1 - Represent the maps given in Exercises 37-40 by...Ch. 4.1 - Represent the maps given in Exercises 37-40 by...Ch. 4.1 - Represent the maps given in Exercises 37-40 by...Ch. 4.1 - Prob. 41ECh. 4.1 - Prob. 42ECh. 4.1 - Prob. 43ECh. 4.1 - Prob. 44ECh. 4.1 - Prob. 45ECh. 4.1 - Prob. 46ECh. 4.1 - Prob. 47ECh. 4.1 - In Exercises 4548, we give you a group of states....Ch. 4.1 - Finding an efficient route. Because of Michaels...Ch. 4.1 - Prob. 50ECh. 4.1 - Use the technique that we used in Example 7 to do...Ch. 4.1 - Use the technique that we used in Example 7 to do...Ch. 4.1 - Use the technique that we used in Example 7 to do...Ch. 4.1 - Use the technique that we used in Example 7 to do...Ch. 4.1 - If, in tracing a graph, we neither begin nor end...Ch. 4.1 - Examine a number of the graphs that we have drawn...Ch. 4.1 - Can an Eulerian graph have a bridge? In order to...Ch. 4.1 - Consider any graph that has some odd and also some...Ch. 4.1 - Discuss specific examples of ways that...Ch. 4.1 - Prob. 60ECh. 4.1 - Draw a graph that can be colored with only two...Ch. 4.1 - Draw a graph that cannot be colored with two...Ch. 4.1 - Draw a graph that cannot be colored with three...Ch. 4.1 - Can you state what configuration of vertices will...Ch. 4.1 - Different notes on a trumpet are obtained by...Ch. 4.1 - If an instrument has four valves, there are 16...Ch. 4.1 - Assume that the registrar at your school is...Ch. 4.1 - Make up a scheduling problem that would be of some...Ch. 4.2 - Prob. 1ECh. 4.2 - Prob. 2ECh. 4.2 - Prob. 3ECh. 4.2 - Prob. 4ECh. 4.2 - Prob. 5ECh. 4.2 - Prob. 6ECh. 4.2 - Prob. 7ECh. 4.2 - Prob. 8ECh. 4.2 - How many Hamilton circuits are in K7?Ch. 4.2 - How many Hamilton circuits are in K8?Ch. 4.2 - Prob. 11ECh. 4.2 - Prob. 12ECh. 4.2 - Prob. 13ECh. 4.2 - Prob. 14ECh. 4.2 - Prob. 15ECh. 4.2 - Prob. 16ECh. 4.2 - Prob. 17ECh. 4.2 - Prob. 18ECh. 4.2 - Prob. 19ECh. 4.2 - Prob. 20ECh. 4.2 - Prob. 21ECh. 4.2 - Prob. 22ECh. 4.2 - Prob. 23ECh. 4.2 - Prob. 24ECh. 4.2 - In Exercises 23 -28, use the best edge algorithm...Ch. 4.2 - Prob. 26ECh. 4.2 - In Exercise 23 -28, use the best edge algorithm to...Ch. 4.2 - In Exercise 23 -28, use the best edge algorithm to...Ch. 4.2 - Simon Cowell plans a series of live shows from...Ch. 4.2 - ESPN is planning to do a special series called...Ch. 4.2 - Foodandwine.com states that the best ice cream...Ch. 4.2 - In order to try to solve a European financial...Ch. 4.2 - Prob. 33ECh. 4.2 - Prob. 34ECh. 4.2 - Prob. 35ECh. 4.2 - Prob. 36ECh. 4.2 - Prob. 37ECh. 4.2 - Prob. 38ECh. 4.2 - Prob. 39ECh. 4.2 - Prob. 40ECh. 4.2 - Prob. 41ECh. 4.2 - Prob. 42ECh. 4.2 - Prob. 43ECh. 4.2 - Prob. 44.1ECh. 4.2 - Prob. 44.2ECh. 4.2 - Prob. 45.1ECh. 4.2 - Prob. 45.2ECh. 4.2 - Prob. 45.3ECh. 4.2 - Prob. 49ECh. 4.2 - Prob. 51ECh. 4.2 - Prob. 52ECh. 4.3 - In Exercises 1-4, use each graph to find the...Ch. 4.3 - In Exercises 1-4, use each graph to find the...Ch. 4.3 - In Exercises 1-4, use each graph to find the...Ch. 4.3 - In Exercises 1-4, use each graph to find the...Ch. 4.3 - Prob. 5ECh. 4.3 - Prob. 6ECh. 4.3 - Prob. 7ECh. 4.3 - Prob. 8ECh. 4.3 - Modeling the spread of rumours. Ryan, Dwight, Pam,...Ch. 4.3 - Modeling the spread of classified information....Ch. 4.3 - Modeling the flow of paperwork through a...Ch. 4.3 - Modeling the spread of disease. The following...Ch. 4.3 - Prob. 13ECh. 4.3 - Modeling a communication network. An AMBER alert...Ch. 4.3 - Ranking football teams. The given graph shows the...Ch. 4.3 - Ranking American Gladiators. The graph below shows...Ch. 4.3 - Modeling influence. A designer who wishes to...Ch. 4.3 - Prob. 18ECh. 4.3 - Prob. 19ECh. 4.3 - Ranking CrossFit competitors. CrossFit is a...Ch. 4.3 - Prob. 21ECh. 4.3 - Prob. 22ECh. 4.3 - Prob. 23ECh. 4.3 - Prob. 24ECh. 4.3 - Prob. 25ECh. 4.3 - Prob. 26ECh. 4.3 - Prob. 27ECh. 4.3 - Prob. 28ECh. 4.3 - Prob. 29ECh. 4.3 - Communicating Mathematics In the incidence...Ch. 4.3 - Math in Your Life: Between the Numbers The history...Ch. 4.3 - Prob. 32ECh. 4.3 - Prob. 33ECh. 4.3 - Prob. 34ECh. 4.4 - Sharpening Your Skills. In Exercises 1 4, assume...Ch. 4.4 - Sharpening Your Skills. In Exercises 1 4, assume...Ch. 4.4 - Sharpening Your Skills. In Exercises 1 4, assume...Ch. 4.4 - Sharpening Your Skills. In Exercises 1 4, assume...Ch. 4.4 - Sharpening Your Skills. In Exercises 5 8, use the...Ch. 4.4 - Sharpening Your Skills. In Exercises 5 8, use the...Ch. 4.4 - Sharpening Your Skills. In Exercises 5 8, use the...Ch. 4.4 - Sharpening Your Skills. In Exercises 5 8, use the...Ch. 4.4 - Applying What Youve Learned. Planning a festival....Ch. 4.4 - Applying What Youve Learned. Organizing a project....Ch. 4.4 - Applying What Youve Learned. Building a student...Ch. 4.4 - Applying What Youve Learned. Organizing a health...Ch. 4.4 - Applying What Youve Learned. Organizing an...Ch. 4.4 - Communicating Mathematics. Study Figure 4.35 with...Ch. 4.4 - Communicating Mathematics. Write a brief report on...Ch. 4.4 - Challenge yourself. Planning an innovative house....Ch. 4.CR - Section 4.1 Use the preceding graph to answer the...Ch. 4.CR - Section 4.1 Explain how graphs are used to model a...Ch. 4.CR - Section 4.1 Which of the following graphs can be...Ch. 4.CR - Section 4.1 Use Fleurys algorithm to find an Euler...Ch. 4.CR - Section 4.1 Model the following street map with a...Ch. 4.CR - Prob. 6CRCh. 4.CR - Section 4.1 Allison, Branden, Colin, Donny, Erica,...Ch. 4.CR - Section 4.2 Find all Hamilton circuits that begin...Ch. 4.CR - Section 4.2 Use the following weighted graph to...Ch. 4.CR - Section 4.2 Use the following weighted graph to...Ch. 4.CR - Prob. 11CRCh. 4.CR - Prob. 12CRCh. 4.CR - Section 4.3 When are directed graphs rather than...Ch. 4.CR - Section 4.3 A student action committee has been...Ch. 4.CR - Section 4.4 Use the following PERT diagram to...Ch. 4.CR - Section 4.4 Congratulations You are planning your...Ch. 4.CT - Use the preceding graph to answer the following...Ch. 4.CT - Which of the following graphs can be traced? If a...Ch. 4.CT - Use Fleurys algorithm to find an Euler circuit in...Ch. 4.CT - Find all Hamilton circuits that begin at vertex A...Ch. 4.CT - Model the following street map with a graph and...Ch. 4.CT - Prob. 6CTCh. 4.CT - Use the following weighted graph to answer...Ch. 4.CT - Use the following weighted graph to answer...Ch. 4.CT - Use the following weighted graph to answer...Ch. 4.CT - Use the given directed graph to find the following...Ch. 4.CT - Use the given PERT diagram to answer the following...Ch. 4.CT - The following graph models one- and two-stage...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.Similar questions
- Compare the interest earned from #1 (where simple interest was used) to #5 (where compound interest was used). The principal, annual interest rate, and time were all the same; the only difference was that for #5, interest was compounded quarterly. Does the difference in interest earned make sense? Select one of the following statements. a. No, because more money should have been earned through simple interest than compound interest. b. Yes, because more money was earned through simple interest. For simple interest you earn interest on interest, not just on the amount of principal. c. No, because more money was earned through simple interest. For simple interest you earn interest on interest, not just on the amount of principal. d. Yes, because more money was earned when compounded quarterly. For compound interest you earn interest on interest, not just on the amount of principal.arrow_forwardReduce the matrix to reduced row-echelon form. [3 2 -2-191 A = 3 -2 0 5 + 2 1 -2 -14 17 1 0 0 3 0 1 0 0 0 4arrow_forwardCompare and contrast the simple and compound interest formulas. Which one of the following statements is correct? a. Simple interest and compound interest formulas both yield principal plus interest, so you must subtract the principal to get the amount of interest. b. Simple interest formula yields principal plus interest, so you must subtract the principal to get the amount of interest; Compound interest formula yields only interest, which you must add to the principal to get the final amount. c. Simple interest formula yields only interest, which you must add to the principal to get the final amount; Compound interest formula yields principal plus interest, so you must subtract the principal to get the amount of interest. d. Simple interest and compound interest formulas both yield only interest, which you must add to the principal to get the final amount.arrow_forward
- Sara would like to go on a vacation in 5 years and she expects her total costs to be $3000. If she invests $2500 into a savings account for those 5 years at 8% interest, compounding semi-annually, how much money will she have? Round your answer to the nearest cent. Show you work. Will she be able to go on vacation? Why or why not?arrow_forwardIf $8000 is deposited into an account earning simple interest at an annual interest rate of 4% for 10 years, howmuch interest was earned? Show you work.arrow_forwardWhy is this proof incorrect? State what statement and/or reason is incorrect and why. Given: Overline OR is congruent to overline OQ, angle N is congruent to angle PProve: Angle 3 is congruent to angle 5 Why is this proof incorrect? Statements Reasons 1. Overline OR is congruent to overline OQ, angle N is congruent to angle P 1. Given 2. Overline ON is congruent to overline OP 2. Converse of the Isosceles Triangle Theorem 3. Triangle ONR is congruent to triangle OPQ 3. SAS 4. Angle 3 is congruent to angle 5 4. CPCTCarrow_forward
- x³-343 If k(x) = x-7 complete the table and use the results to find lim k(x). X-7 x 6.9 6.99 6.999 7.001 7.01 7.1 k(x) Complete the table. X 6.9 6.99 6.999 7.001 7.01 7.1 k(x) (Round to three decimal places as needed.)arrow_forward(3) (4 points) Given three vectors a, b, and c, suppose: |bx c = 2 |a|=√√8 • The angle between a and b xc is 0 = 135º. . Calculate the volume a (bxc) of the parallelepiped spanned by the three vectors.arrow_forwardCalculate these limits. If the limit is ∞ or -∞, write infinity or-infinity. If the limit does not exist, write DNE: Hint: Remember the first thing you check when you are looking at a limit of a quotient is the limit value of the denominator. 1. If the denominator does not go to 0, you should be able to right down the answer immediately. 2. If the denominator goes to 0, but the numerator does not, you will have to check the sign (±) of the quotient, from both sides if the limit is not one-sided. 3. If both the numerator and the denominator go to 0, you have to do the algebraic trick of rationalizing. So, group your limits into these three forms and work with them one group at a time. (a) lim t-pi/2 sint-√ sin 2t+14cos ² t 7 2 2 2cos t (b) lim sint + sin 2t+14cos = ∞ t-pi/2 2 2cos t (c) lim cost-√sin 2t+14cos² t = t-pi/2 2cos t (d) lim t→pi/2 cost+√ sin t + 14cos 2cos ² t = ∞ (e) lim sint-v sin 2 t + 14cos = 0 t-pi/2 (f) lim t-pi/2 sin t +√ sin 2sin 2 t 2 t + 14cos t 2sin t cost- (g)…arrow_forward
- Think of this sheet of paper as the plane containing the vectors a = (1,1,0) and b = (2,0,0). Sketch the parallelogram P spanned by a and b. Which diagonal of P represents the vector a--b geometrically?arrow_forwardGiven: AABE ~ ACDE. Prove: AC bisects BD. Note: quadrilateral properties are not permitted in this proof. Step Statement Reason AABE ACDE Given 2 ZDEC ZAEB Vertical angles are congruent try Type of Statement A E B D Carrow_forward10-2 Let A = 02-4 and b = 4 Denote the columns of A by a₁, a2, a3, and let W = Span {a1, a2, a̸3}. -4 6 5 - 35 a. Is b in {a1, a2, a3}? How many vectors are in {a₁, a₂, a3}? b. Is b in W? How many vectors are in W? c. Show that a2 is in W. [Hint: Row operations are unnecessary.] a. Is b in {a₁, a2, a3}? Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. ○ A. No, b is not in {a₁, a2, 3} since it cannot be generated by a linear combination of a₁, a2, and a3. B. No, b is not in (a1, a2, a3} since b is not equal to a₁, a2, or a3. C. Yes, b is in (a1, a2, a3} since b = a (Type a whole number.) D. Yes, b is in (a1, a2, 3} since, although b is not equal to a₁, a2, or a3, it can be expressed as a linear combination of them. In particular, b = + + ☐ az. (Simplify your answers.)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Elementary Linear Algebra (MindTap Course List)AlgebraISBN:9781305658004Author:Ron LarsonPublisher:Cengage Learning
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Elements Of Modern AlgebraAlgebraISBN:9781285463230Author:Gilbert, Linda, JimmiePublisher:Cengage Learning,
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Elementary Linear Algebra (MindTap Course List)
Algebra
ISBN:9781305658004
Author:Ron Larson
Publisher:Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Elements Of Modern Algebra
Algebra
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Cengage Learning,
Graph Theory: Euler Paths and Euler Circuits; Author: Mathispower4u;https://www.youtube.com/watch?v=5M-m62qTR-s;License: Standard YouTube License, CC-BY
WALK,TRIAL,CIRCUIT,PATH,CYCLE IN GRAPH THEORY; Author: DIVVELA SRINIVASA RAO;https://www.youtube.com/watch?v=iYVltZtnAik;License: Standard YouTube License, CC-BY