EBK ALGEBRA AND TRIGONOMETRY
4th Edition
ISBN: 8220100548512
Author: Watson
Publisher: CENGAGE L
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Chapter 11.1, Problem 7E
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Chapter 11 Solutions
EBK ALGEBRA AND TRIGONOMETRY
Ch. 11.1 - If a system of linear equations has infinitely...Ch. 11.1 - Write the augmented matrix of the following system...Ch. 11.1 - Prob. 3ECh. 11.1 - Prob. 4ECh. 11.1 - Prob. 5ECh. 11.1 - Prob. 6ECh. 11.1 - 5-10 Dimension of a Matrix State the dimension of...Ch. 11.1 - Prob. 8ECh. 11.1 - Prob. 9ECh. 11.1 - Prob. 10E
Ch. 11.1 - Prob. 11ECh. 11.1 - Prob. 12ECh. 11.1 - 13-20 Form of a Matrix A matrix is given. a...Ch. 11.1 - Prob. 14ECh. 11.1 - Prob. 15ECh. 11.1 - Prob. 16ECh. 11.1 - Prob. 17ECh. 11.1 - Prob. 18ECh. 11.1 - 13-20Form of a Matrix A matrix is given. a...Ch. 11.1 - Prob. 20ECh. 11.1 - Prob. 21ECh. 11.1 - Prob. 22ECh. 11.1 - Prob. 23ECh. 11.1 - Prob. 24ECh. 11.1 - 25-28Back-Substitution A matrix is given in...Ch. 11.1 - Prob. 26ECh. 11.1 - Prob. 27ECh. 11.1 - Prob. 28ECh. 11.1 - Prob. 29ECh. 11.1 - Prob. 30ECh. 11.1 - 29-38Linear Systems with One Solution The system...Ch. 11.1 - 29-38Linear Systems with One Solution The system...Ch. 11.1 - Prob. 33ECh. 11.1 - Prob. 34ECh. 11.1 - Prob. 35ECh. 11.1 - Prob. 36ECh. 11.1 - 29-38Linear Systems with One Solution The system...Ch. 11.1 - Prob. 38ECh. 11.1 - Prob. 39ECh. 11.1 - Prob. 40ECh. 11.1 - Prob. 41ECh. 11.1 - 39-48Dependent or Inconsistent Linear Systems...Ch. 11.1 - 39-48Dependent or Inconsistent Linear Systems...Ch. 11.1 - Prob. 44ECh. 11.1 - Prob. 45ECh. 11.1 - Prob. 46ECh. 11.1 - Prob. 47ECh. 11.1 - 39-48Dependent or Inconsistent Linear Systems...Ch. 11.1 - SKILLS 49-64 Solving a Linear SystemsSolve the...Ch. 11.1 - Prob. 50ECh. 11.1 - Prob. 51ECh. 11.1 - Prob. 52ECh. 11.1 - Prob. 53ECh. 11.1 - Prob. 54ECh. 11.1 - SKILLS 49-64 Solving a Linear SystemsSolve the...Ch. 11.1 - Prob. 56ECh. 11.1 - SKILLS 49-64 Solving a Linear SystemsSolve the...Ch. 11.1 - Prob. 58ECh. 11.1 - Prob. 59ECh. 11.1 - Prob. 60ECh. 11.1 - SKILLS 49-64 Solving a Linear SystemsSolve the...Ch. 11.1 - SKILLS 49-64 Solving a Linear SystemsSolve the...Ch. 11.1 - Prob. 63ECh. 11.1 - Prob. 64ECh. 11.1 - Prob. 65ECh. 11.1 - Prob. 66ECh. 11.1 - SKILLS 65-68 Solving a Linear System Using a...Ch. 11.1 - Prob. 68ECh. 11.1 - Prob. 69ECh. 11.1 - Prob. 70ECh. 11.1 - Prob. 71ECh. 11.1 - APPLICATIONS Classroom UseA small school has 100...Ch. 11.1 - APPLICATIONS Manufacturing FurnitureA furniture...Ch. 11.1 - APPLICATIONS Traffic FlowA section of a citys...Ch. 11.1 - Prob. 75ECh. 11.2 - Prob. 1ECh. 11.2 - Prob. 2ECh. 11.2 - Which of the following operations can we perform...Ch. 11.2 - Prob. 4ECh. 11.2 - Prob. 5ECh. 11.2 - Prob. 6ECh. 11.2 - Prob. 7ECh. 11.2 - Prob. 8ECh. 11.2 - Prob. 9ECh. 11.2 - Prob. 10ECh. 11.2 - Prob. 11ECh. 11.2 - Prob. 12ECh. 11.2 - Prob. 13ECh. 11.2 - Prob. 14ECh. 11.2 - Prob. 15ECh. 11.2 - Prob. 16ECh. 11.2 - Prob. 17ECh. 11.2 - Prob. 18ECh. 11.2 - Prob. 19ECh. 11.2 - Prob. 20ECh. 11.2 - Prob. 21ECh. 11.2 - Prob. 22ECh. 11.2 - Prob. 23ECh. 11.2 - Prob. 24ECh. 11.2 - Prob. 25ECh. 11.2 - Prob. 26ECh. 11.2 - Prob. 27ECh. 11.2 - Prob. 28ECh. 11.2 - Prob. 29ECh. 11.2 - Prob. 30ECh. 11.2 - Prob. 31ECh. 11.2 - Prob. 32ECh. 11.2 - Prob. 33ECh. 11.2 - Prob. 34ECh. 11.2 - Prob. 35ECh. 11.2 - Prob. 36ECh. 11.2 - Prob. 37ECh. 11.2 - Prob. 38ECh. 11.2 - Prob. 39ECh. 11.2 - Prob. 40ECh. 11.2 - Prob. 41ECh. 11.2 - Prob. 42ECh. 11.2 - Prob. 43ECh. 11.2 - Prob. 44ECh. 11.2 - Prob. 45ECh. 11.2 - Prob. 46ECh. 11.2 - Prob. 47ECh. 11.2 - Prob. 48ECh. 11.2 - Prob. 49ECh. 11.2 - Prob. 50ECh. 11.2 - Prob. 51ECh. 11.2 - Prob. 52ECh. 11.2 - Prob. 53ECh. 11.2 - Prob. 54ECh. 11.2 - Prob. 55ECh. 11.2 - APPLICATIONS Fact-Food Sales A small fast-food...Ch. 11.2 - Prob. 57ECh. 11.2 - Prob. 58ECh. 11.2 - Prob. 59ECh. 11.2 - Digital Images A four-level gray scale is shown...Ch. 11.2 - Prob. 61ECh. 11.2 - Prob. 62ECh. 11.2 - Prob. 63ECh. 11.2 - Prob. 64ECh. 11.3 - Prob. 1ECh. 11.3 - Prob. 2ECh. 11.3 - Prob. 3ECh. 11.3 - Prob. 4ECh. 11.3 - Prob. 5ECh. 11.3 - Prob. 6ECh. 11.3 - Prob. 7ECh. 11.3 - Prob. 8ECh. 11.3 - Prob. 9ECh. 11.3 - Prob. 10ECh. 11.3 - Prob. 11ECh. 11.3 - Prob. 12ECh. 11.3 - Prob. 13ECh. 11.3 - Prob. 14ECh. 11.3 - Prob. 15ECh. 11.3 - Prob. 16ECh. 11.3 - Prob. 17ECh. 11.3 - Prob. 18ECh. 11.3 - Prob. 19ECh. 11.3 - Prob. 20ECh. 11.3 - Prob. 21ECh. 11.3 - Prob. 22ECh. 11.3 - Prob. 23ECh. 11.3 - Prob. 24ECh. 11.3 - Prob. 25ECh. 11.3 - Prob. 26ECh. 11.3 - Prob. 27ECh. 11.3 - Prob. 28ECh. 11.3 - Prob. 29ECh. 11.3 - Prob. 30ECh. 11.3 - Prob. 31ECh. 11.3 - Prob. 32ECh. 11.3 - Prob. 33ECh. 11.3 - Prob. 34ECh. 11.3 - Prob. 35ECh. 11.3 - Prob. 36ECh. 11.3 - Prob. 37ECh. 11.3 - Prob. 38ECh. 11.3 - Prob. 39ECh. 11.3 - Prob. 40ECh. 11.3 - Prob. 41ECh. 11.3 - Prob. 42ECh. 11.3 - Prob. 43ECh. 11.3 - Prob. 44ECh. 11.3 - Prob. 45ECh. 11.3 - Prob. 46ECh. 11.3 - Prob. 47ECh. 11.3 - Prob. 48ECh. 11.3 - Prob. 49ECh. 11.3 - Prob. 50ECh. 11.3 - Prob. 51ECh. 11.3 - Prob. 52ECh. 11.3 - Prob. 53ECh. 11.3 - Prob. 54ECh. 11.3 - Prob. 55ECh. 11.3 - Prob. 56ECh. 11.3 - Prob. 57ECh. 11.3 - Prob. 58ECh. 11.3 - Prob. 59ECh. 11.3 - Prob. 60ECh. 11.3 - Prob. 61ECh. 11.3 - Prob. 62ECh. 11.3 - Prob. 63ECh. 11.3 - Prob. 64ECh. 11.4 - Prob. 1ECh. 11.4 - Prob. 2ECh. 11.4 - Prob. 3ECh. 11.4 - Prob. 4ECh. 11.4 - 5-14Finding Determinants Find the determinant of...Ch. 11.4 - Prob. 6ECh. 11.4 - Prob. 7ECh. 11.4 - Prob. 8ECh. 11.4 - Prob. 9ECh. 11.4 - Prob. 10ECh. 11.4 - Prob. 11ECh. 11.4 - Prob. 12ECh. 11.4 - Prob. 13ECh. 11.4 - Prob. 14ECh. 11.4 - Prob. 15ECh. 11.4 - Prob. 16ECh. 11.4 - Prob. 17ECh. 11.4 - Prob. 18ECh. 11.4 - Prob. 19ECh. 11.4 - Prob. 20ECh. 11.4 - Prob. 21ECh. 11.4 - Prob. 22ECh. 11.4 - Prob. 23ECh. 11.4 - Prob. 24ECh. 11.4 - Prob. 25ECh. 11.4 - Prob. 26ECh. 11.4 - Prob. 27ECh. 11.4 - Prob. 28ECh. 11.4 - Prob. 29ECh. 11.4 - Prob. 30ECh. 11.4 - Prob. 31ECh. 11.4 - Prob. 32ECh. 11.4 - Prob. 33ECh. 11.4 - Prob. 34ECh. 11.4 - Prob. 35ECh. 11.4 - Prob. 36ECh. 11.4 - Prob. 37ECh. 11.4 - Prob. 38ECh. 11.4 - Prob. 39ECh. 11.4 - Prob. 40ECh. 11.4 - Prob. 41ECh. 11.4 - Prob. 42ECh. 11.4 - Prob. 43ECh. 11.4 - Prob. 44ECh. 11.4 - Prob. 45ECh. 11.4 - Prob. 46ECh. 11.4 - Prob. 47ECh. 11.4 - Prob. 48ECh. 11.4 - Prob. 49ECh. 11.4 - Prob. 50ECh. 11.4 - Prob. 51ECh. 11.4 - Prob. 52ECh. 11.4 - Prob. 53ECh. 11.4 - Prob. 54ECh. 11.4 - Prob. 55ECh. 11.4 - Prob. 56ECh. 11.4 - Prob. 57ECh. 11.4 - Prob. 58ECh. 11.4 - Prob. 59ECh. 11.4 - Prob. 60ECh. 11.4 - Prob. 61ECh. 11.4 - Prob. 62ECh. 11.4 - Prob. 63ECh. 11.4 - Prob. 64ECh. 11.4 - Prob. 65ECh. 11.4 - Prob. 66ECh. 11.4 - Prob. 67ECh. 11.4 - Prob. 68ECh. 11.4 - Collinear Points and Determinants a If three...Ch. 11.4 - Prob. 70ECh. 11.4 - Prob. 71ECh. 11.4 - APPLICATIONS The Arch of a BridgeThe opening of a...Ch. 11.4 - Prob. 73ECh. 11.4 - Prob. 74ECh. 11.4 - Prob. 75ECh. 11.4 - Prob. 76ECh. 11.CR - Prob. 1CCCh. 11.CR - What is the row-echelon form of a matrix? What is...Ch. 11.CR - Prob. 3CCCh. 11.CR - Prob. 4CCCh. 11.CR - Prob. 5CCCh. 11.CR - Prob. 6CCCh. 11.CR - Prob. 7CCCh. 11.CR - Prob. 8CCCh. 11.CR - Prob. 9CCCh. 11.CR - Prob. 10CCCh. 11.CR - Prob. 11CCCh. 11.CR - Prob. 1ECh. 11.CR - Prob. 2ECh. 11.CR - Prob. 3ECh. 11.CR - Matrices A matrix is given. a State the dimension...Ch. 11.CR - Prob. 5ECh. 11.CR - Prob. 6ECh. 11.CR - Prob. 7ECh. 11.CR - Prob. 8ECh. 11.CR - Prob. 9ECh. 11.CR - Prob. 10ECh. 11.CR - Prob. 11ECh. 11.CR - Prob. 12ECh. 11.CR - Prob. 13ECh. 11.CR - Prob. 14ECh. 11.CR - Prob. 15ECh. 11.CR - Prob. 16ECh. 11.CR - Prob. 17ECh. 11.CR - Prob. 18ECh. 11.CR - Prob. 19ECh. 11.CR - Prob. 20ECh. 11.CR - Prob. 21ECh. 11.CR - Prob. 22ECh. 11.CR - Prob. 23ECh. 11.CR - Prob. 24ECh. 11.CR - Prob. 25ECh. 11.CR - Prob. 26ECh. 11.CR - Prob. 27ECh. 11.CR - Prob. 28ECh. 11.CR - Prob. 29ECh. 11.CR - Prob. 30ECh. 11.CR - Prob. 31ECh. 11.CR - Prob. 32ECh. 11.CR - Prob. 33ECh. 11.CR - Prob. 34ECh. 11.CR - Prob. 35ECh. 11.CR - Prob. 36ECh. 11.CR - Prob. 37ECh. 11.CR - Prob. 38ECh. 11.CR - Prob. 39ECh. 11.CR - Prob. 40ECh. 11.CR - Prob. 41ECh. 11.CR - Prob. 42ECh. 11.CR - Prob. 43ECh. 11.CR - Prob. 44ECh. 11.CR - Prob. 45ECh. 11.CR - Prob. 46ECh. 11.CR - Prob. 47ECh. 11.CR - Prob. 48ECh. 11.CR - Prob. 49ECh. 11.CR - Prob. 50ECh. 11.CR - Prob. 51ECh. 11.CR - Prob. 52ECh. 11.CR - Prob. 53ECh. 11.CR - Prob. 54ECh. 11.CR - Prob. 55ECh. 11.CR - Prob. 56ECh. 11.CR - Prob. 57ECh. 11.CR - Prob. 58ECh. 11.CR - Prob. 59ECh. 11.CR - 5360. Determinants and Inverse Matrices: Find the...Ch. 11.CR - Prob. 61ECh. 11.CR - Prob. 62ECh. 11.CR - Prob. 63ECh. 11.CR - Prob. 64ECh. 11.CR - Prob. 65ECh. 11.CR - Prob. 66ECh. 11.CR - 6770. Using Cramers Rule to solve a system: Solve...Ch. 11.CR - Prob. 68ECh. 11.CR - Prob. 69ECh. 11.CR - Prob. 70ECh. 11.CR - Prob. 71ECh. 11.CR - Prob. 72ECh. 11.CR - Prob. 73ECh. 11.CR - Prob. 74ECh. 11.CT - Prob. 1CTCh. 11.CT - Prob. 2CTCh. 11.CT - Prob. 3CTCh. 11.CT - Prob. 4CTCh. 11.CT - Prob. 5CTCh. 11.CT - Prob. 6CTCh. 11.CT - Prob. 7CTCh. 11.CT - Prob. 8CTCh. 11.CT - Prob. 9CTCh. 11.CT - Prob. 10CTCh. 11.CT - Prob. 11CTCh. 11.CT - Prob. 12CTCh. 11.CT - Prob. 13CTCh. 11.CT - Prob. 14CTCh. 11.CT - Prob. 15CTCh. 11.CT - Prob. 16CTCh. 11.CT - Prob. 17CTCh. 11.CT - TEST Only one of the following matrix has an...Ch. 11.CT - Prob. 19CTCh. 11.CT - Prob. 20CTCh. 11.FOM - The gray square in Table 1 has the following...Ch. 11.FOM - Verify that multiplication by the given matrix has...Ch. 11.FOM - Let T=[11.501] aWhat effect does T have on the...Ch. 11.FOM - a Let T=[3001]. What effect does T have on the...Ch. 11.FOM - The figure shows three outline versions of the...Ch. 11.FOM - Here is a data matrix for a line drawing:...
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- Finding a Value: Find x such that the matrix is equal to its own inverse. A=3x23arrow_forwardDigital Images A four-level gray scale is shown below. aUse the gray scale to find a 66 matrix that digitally represents the image in the figure. bFind a matrix that represents a darker version of the image in the figure. cThe negative of an image is obtained by reversing light and dark, as in the negative of a photograph. Find the matrix that represents the negative of the image in the figure. How do you change the elements of the matrix to create the negative? dIncrease the contrast of the image by changing each 1 to a 0 and each 2 to a 3 in the matrix you found in part a. Draw the image represented by the resulting matrix. Does this clarify the image? eDraw the image represented by the matrix I. Can you recognize what this is? If you dont, try increasing the contrast. I=[123320030101132300030101133230010101]arrow_forwardCAPSTONE a Explain how to find an elementary matrix. b Explain how to use elementary matrices to find an LU-factorization of a matrix. c Explain how to use LU-factorization to solve a linear system.arrow_forward
- Use matrix methods to solve each problem Nutritional planning One ounce of each of three foods has the vitamin and mineral content shown in the table. How many ounces of each must be used to provide exactly 22 milligrams mg of niacin, 12 mg of zinc, and 20 mg of vitamin C? Food Niacin Zinc Vitamin C A 1 mg 1 mg 2 mg B 2 mg 1 mg 1 mg C 2 mg 1 mg 2 mgarrow_forwardNutrition Refer to Exercise 61. Suppose food type C has been improperly labeled, and it actually contains 4 mg of folic acid, 6 mg of choline, and 5 mg of inositol per ounce. Would it still be possible to use matrix inversion to solve parts (b), (c), and (d) of Exercise 61? Why or why not?arrow_forwardGuided Proof Prove that if A is row-equivalent to B, and B is row-equivalent to C, A is row-equivalent to C. Getting Started: to prove that If A is row-equivalent to C, you have to find elementary matrices E1, E2. Ek such that A=EkE2E1C. i Begin by observing that A is row-equivalent to B and B is row-equivalent to C. ii This means that there exist elementary matrices F1F2Fn and G1G2Gm such that A=FnF2F1B and B=GmG2G1C. iii Combine the matrix equations from step ii.arrow_forward
- Mathematical Modeling: A video of the path of a ball thrown by a baseball player was analyzed with a grid covering the TV screen. The video was paused three times, and the position of the ball was measured each time. The coordinates obtained are shown in the table. ( x and y are measured in feet.) (a) Use a system of equations to find the equation of the parabola y=ax2+bx+c that passes through the three points. Solve the system using matrices. (b) Use a graphing utility to graph the parabola. (c) Graphically approximate the maximum height of the ball and the point at which the ball struck the ground. (d) Analytically find the maximum height of the ball and the point at which the ball struck the ground. (e) Compare your results from parts (c) and (d).arrow_forwardWhich of the following operations can we perform for a matrix A of any dimension? (i) A+A (ii) 2A (iii) AAarrow_forward(a) The matrix I=[1001] is called an _____ matrix. (b) If A is a 22 matrix, then AI= _____ and IA= _____. (c) If A and B are 22 matrices with AB=I , then B is the _____ of A.arrow_forward
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