Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN: 9781305658004
Author: Ron Larson
Publisher: Cengage Learning
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Chapter 1.1, Problem 26E
Back-Substitution. In Exercises 25-30, use back-substitution to solve the system.
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The table below shows the acreage, number of visitors, and total revenue of state parks and recreational areas in Massachusetts, New York, and Vermont in 2010.
State Acreage (in thousands) Visitors (in thousands) Revenue (in thousands)
Massachusetts 350 35,271 $12,644
New York 1,354 56,322 $85,558
Vermont 69 758 $10,969
Select the three true statements based on the data in the table.
A.
Vermont had the highest revenue per acre of state parks and recreational areas.
B.
Vermont had approximately 11 visitors per acre of state parks and recreational areas.
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New York had the highest number of visitors per acre of state parks and recreational areas.
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Massachusetts had approximately 36 visitors per acre of state parks and recreational areas.
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New York had revenue of approximately $63.19 per acre of state parks and recreational areas.
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Massachusetts had revenue of approximately $0.03 per acre of state parks and recreational areas.
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Chapter 1 Solutions
Elementary Linear Algebra (MindTap Course List)
Ch. 1.1 - Linear Equations. In Exercises 1-6, determine...Ch. 1.1 - Linear Equations. In Exercises 1-6, determine...Ch. 1.1 - Linear Equations. In Exercises 1-6, determine...Ch. 1.1 - Linear Equations. In Exercises 1-6, determine...Ch. 1.1 - Linear Equations. In Exercises 1-6, determine...Ch. 1.1 - Linear Equations. In Exercises 1-6, determine...Ch. 1.1 - Parametric Representation. In Exercises 7-10, find...Ch. 1.1 - Parametric Representation. In Exercises 7-10, find...Ch. 1.1 - Parametric Representation. In Exercises 7-10, find...Ch. 1.1 - Parametric Representation. In Exercises 7-10, find...
Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Prob. 22ECh. 1.1 - Prob. 23ECh. 1.1 - Graphing Analysis. In Exercises 11-24, graph the...Ch. 1.1 - Back-Substitution. In Exercises 25-30, use...Ch. 1.1 - Back-Substitution. In Exercises 25-30, use...Ch. 1.1 - Back-Substitution. In Exercises 25-30, use...Ch. 1.1 - Back-Substitution. In Exercises 25-30, use...Ch. 1.1 - Back-Substitution. In Exercises 25-30, use...Ch. 1.1 - Back-Substitution. In Exercises 25-30, use...Ch. 1.1 - Prob. 31ECh. 1.1 - Graphical Analysis. In Exercises 31-36, complete...Ch. 1.1 - Graphical Analysis. In Exercises 31-36, complete...Ch. 1.1 - Prob. 34ECh. 1.1 - Prob. 35ECh. 1.1 - Graphical Analysis. In Exercises 31-36, complete...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - Prob. 38ECh. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - Prob. 40ECh. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - Prob. 43ECh. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 37-56,...Ch. 1.1 - System of Linear Equations. In Exercises 57-62,...Ch. 1.1 - System of Linear Equations. In Exercises 57-62,...Ch. 1.1 - System of Linear Equations. In Exercises 57-62,...Ch. 1.1 - System of Linear Equations. In Exercises 57-62,...Ch. 1.1 - System of Linear Equations. In Exercises 57-62,...Ch. 1.1 - System of Linear Equations. In Exercises 57-62,...Ch. 1.1 - Number of Solutions. In Exercises 63-66, state why...Ch. 1.1 - Number of Solutions. In Exercises 63-66, state why...Ch. 1.1 - Number of Solutions. In Exercises 63-66, state why...Ch. 1.1 - Number of Solutions. In Exercises 63-66, state why...Ch. 1.1 - Nutrition One eight-ounce glass of apple juice and...Ch. 1.1 - Airplane Speed Two planes start from Los Angeles...Ch. 1.1 - True or False? In Exercises 69 and 70, determine...Ch. 1.1 - True or False? In Exercises 69 and 70, determine...Ch. 1.1 - Find a system of two equations in two variables,...Ch. 1.1 - Find a system of two equations in three variables,...Ch. 1.1 - Substitution In Exercises 73-76, solve the system...Ch. 1.1 - Substitution In Exercises 73-76, solve the system...Ch. 1.1 - Prob. 75ECh. 1.1 - Substitution In Exercises 73-76, solve the system...Ch. 1.1 - Prob. 77ECh. 1.1 - Trigonometric Coefficients In Exercises 77 and 78,...Ch. 1.1 - Coefficient Design In Exercises 79-84, determine...Ch. 1.1 - Coefficient Design In Exercises 79-84, determine...Ch. 1.1 - Coefficient Design In Exercises 79-84, determine...Ch. 1.1 - Coefficient Design In Exercises 79-84, determine...Ch. 1.1 - Prob. 83ECh. 1.1 - Coefficient Design In Exercises 79-84, determine...Ch. 1.1 - Determine the values of k such that the system of...Ch. 1.1 - CAPSTONE Find values of a, b, and c such that the...Ch. 1.1 - Writing Consider the system of linear equations in...Ch. 1.1 - Writing Explain why the system of linear equations...Ch. 1.1 - Show that if ax2+bx+c=0 for all x, then a=b=c=0.Ch. 1.1 - Consider the system of linear equations in x and...Ch. 1.1 - Discovery In Exercises 91 and 92, sketch the lines...Ch. 1.1 - Discovery In Exercises 91 and 92, sketch the lines...Ch. 1.1 - Prob. 93ECh. 1.1 - Writing In Exercises 93 and 94, the graphs of the...Ch. 1.2 - Matrix sizeIn Exercises 1-6, determine the size of...Ch. 1.2 - Matrix sizeIn Exercises 1-6, determine the size of...Ch. 1.2 - Matrix sizeIn Exercises 1-6, determine the size of...Ch. 1.2 - Prob. 4ECh. 1.2 - Matrix sizeIn Exercises 1-6, determine the size of...Ch. 1.2 - Prob. 6ECh. 1.2 - Elementary Row Operations In Exercises 7-10,...Ch. 1.2 - Elementary Row Operations In Exercises 7-10,...Ch. 1.2 - Elementary Row Operations In Exercises 7-10,...Ch. 1.2 - Elementary Row Operations In Exercises 7-10,...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Augmented Matrix In Exercises 11-18, find the...Ch. 1.2 - Row-Echelon Form In Exercises 19-24, determine...Ch. 1.2 - Row-Echelon Form In Exercises 19-24, determine...Ch. 1.2 - Row-Echelon Form In Exercises 19-24, determine...Ch. 1.2 - Row-Echelon Form In Exercises 19-24, determine...Ch. 1.2 - Row-Echelon Form In Exercises 19-24, determine...Ch. 1.2 - Row-Echelon Form In Exercises 19-24, determine...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - Prob. 36ECh. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - System of Linear Equations In Exercises 25-38,...Ch. 1.2 - Prob. 39ECh. 1.2 - Prob. 40ECh. 1.2 - Prob. 41ECh. 1.2 - System of Linear Equations In Exercises 39-42, use...Ch. 1.2 - Homogeneous System In Exercises 43-46, solve the...Ch. 1.2 - Homogeneous System In Exercises 43-46, solve the...Ch. 1.2 - Homogeneous System In Exercises 43-46, solve the...Ch. 1.2 - Homogeneous System In Exercises 43-46, solve the...Ch. 1.2 - Prob. 47ECh. 1.2 - Prob. 48ECh. 1.2 - Matrix Representation In Exercises 49 and 50,...Ch. 1.2 - Matrix Representation In Exercises 49 and 50,...Ch. 1.2 - Coefficient Design In Exercises 51 and 52, find...Ch. 1.2 - Coefficient Design In Exercises 51 and 52, find...Ch. 1.2 - Prob. 53ECh. 1.2 - Prob. 54ECh. 1.2 - Prob. 55ECh. 1.2 - Prob. 56ECh. 1.2 - Prob. 57ECh. 1.2 - Prob. 58ECh. 1.2 - True or False? In Exercises 59 and 60, determine...Ch. 1.2 - Prob. 60ECh. 1.2 - Prob. 61ECh. 1.2 - Prob. 62ECh. 1.2 - Prob. 63ECh. 1.2 - Row Equivalence In Exercises 63 and 64, determine...Ch. 1.2 - Homogeneous System In Exercises 65 and 66, find...Ch. 1.2 - Prob. 66ECh. 1.2 - Prob. 67ECh. 1.2 - CAPSTONE In your own words, describe the...Ch. 1.2 - Prob. 69ECh. 1.2 - Prob. 70ECh. 1.3 - Polynomial Curve Fitting In Exercises 1-12,a...Ch. 1.3 - Polynomial Curve Fitting In Exercises 1-12,a...Ch. 1.3 - Prob. 3ECh. 1.3 - Polynomial Curve Fitting In Exercises 1-12,a...Ch. 1.3 - Polynomial Curve Fitting In Exercises 1-12,a...Ch. 1.3 - Prob. 6ECh. 1.3 - Prob. 7ECh. 1.3 - Prob. 8ECh. 1.3 - Polynomial Curve Fitting In Exercises 1-12,a...Ch. 1.3 - Prob. 10ECh. 1.3 - Prob. 11ECh. 1.3 - Polynomial Curve Fitting In Exercises 1-12,a...Ch. 1.3 - Use sin0=0, sin2=1, and sin=0 to estimate sin3.Ch. 1.3 - Use log21=0,log22=1, and log24=2 to estimate...Ch. 1.3 - Prob. 15ECh. 1.3 - Prob. 16ECh. 1.3 - Prob. 17ECh. 1.3 - Population The table shows the U.S. populations...Ch. 1.3 - Prob. 19ECh. 1.3 - Prob. 20ECh. 1.3 - Network Analysis The figure shows the flow of...Ch. 1.3 - Network Analysis The figure shows the flow of...Ch. 1.3 - Network Analysis The figure shows the flow of...Ch. 1.3 - Network Analysis Water is flowing through a...Ch. 1.3 - Prob. 25ECh. 1.3 - Prob. 26ECh. 1.3 - Prob. 27ECh. 1.3 - Prob. 28ECh. 1.3 - Temperature In Exercises 29 and 30, the figure...Ch. 1.3 - Temperature In Exercises 29 and 30, the figure...Ch. 1.3 - Partial Fraction Decomposition In Exercises 3134,...Ch. 1.3 - Partial Fraction Decomposition In Exercises 3134,...Ch. 1.3 - Prob. 33ECh. 1.3 - Prob. 34ECh. 1.3 - Calculus In Exercises 35 and 36, find the values...Ch. 1.3 - Prob. 36ECh. 1.3 - Calculus The graph of a parabola passes through...Ch. 1.3 - Calculus The graph of a cubic polynomial function...Ch. 1.3 - Prob. 39ECh. 1.3 - Prob. 40ECh. 1.3 - Prob. 41ECh. 1.3 - Prob. 42ECh. 1.CR - Linear Equations In Exercises 1-6, determine...Ch. 1.CR - Linear Equations In Exercises 1-6, determine...Ch. 1.CR - Prob. 3CRCh. 1.CR - Prob. 4CRCh. 1.CR - Prob. 5CRCh. 1.CR - Prob. 6CRCh. 1.CR - Prob. 7CRCh. 1.CR - Parametric Representation In Exercises 7 and 8,...Ch. 1.CR - Prob. 9CRCh. 1.CR - Prob. 10CRCh. 1.CR - Prob. 11CRCh. 1.CR - System of Linear Equations In Exercises 9-20,...Ch. 1.CR - Prob. 13CRCh. 1.CR - Prob. 14CRCh. 1.CR - Prob. 15CRCh. 1.CR - System of Linear Equations In Exercises 9-20,...Ch. 1.CR - Prob. 17CRCh. 1.CR - Prob. 18CRCh. 1.CR - Prob. 19CRCh. 1.CR - Prob. 20CRCh. 1.CR - Prob. 21CRCh. 1.CR - Prob. 22CRCh. 1.CR - Prob. 23CRCh. 1.CR - Prob. 24CRCh. 1.CR - Prob. 25CRCh. 1.CR - Prob. 26CRCh. 1.CR - Prob. 27CRCh. 1.CR - Prob. 28CRCh. 1.CR - Prob. 29CRCh. 1.CR - Prob. 30CRCh. 1.CR - Prob. 31CRCh. 1.CR - Prob. 32CRCh. 1.CR - Prob. 33CRCh. 1.CR - Prob. 34CRCh. 1.CR - Prob. 35CRCh. 1.CR - System of Linear Equations In Exercises 31-40,...Ch. 1.CR - Prob. 37CRCh. 1.CR - System of Linear Equations In Exercises 31-40,...Ch. 1.CR - Prob. 39CRCh. 1.CR - Prob. 40CRCh. 1.CR - Prob. 41CRCh. 1.CR - Prob. 42CRCh. 1.CR - Prob. 43CRCh. 1.CR - Prob. 44CRCh. 1.CR - Prob. 45CRCh. 1.CR - Prob. 46CRCh. 1.CR - Homogeneous System In Exercises 47-50, solve the...Ch. 1.CR - Prob. 48CRCh. 1.CR - Prob. 49CRCh. 1.CR - Prob. 50CRCh. 1.CR - Prob. 51CRCh. 1.CR - Prob. 52CRCh. 1.CR - Prob. 53CRCh. 1.CR - Find if possible values of a,b, and c such that...Ch. 1.CR - Prob. 55CRCh. 1.CR - Prob. 56CRCh. 1.CR - Prob. 57CRCh. 1.CR - Find all values of for which the homogeneous...Ch. 1.CR - Prob. 59CRCh. 1.CR - Prob. 60CRCh. 1.CR - Sports In Super Bowl I, on January 15, 1967, the...Ch. 1.CR - Agriculture A mixture of 6 gallons of chemical A,...Ch. 1.CR - Prob. 63CRCh. 1.CR - Prob. 64CRCh. 1.CR - Prob. 65CRCh. 1.CR - Prob. 66CRCh. 1.CR - Prob. 67CRCh. 1.CR - Prob. 68CRCh. 1.CR - Prob. 69CRCh. 1.CR - Prob. 70CRCh. 1.CR - Prob. 71CRCh. 1.CR - Network Analysis Determine the currents I1,I2, and...
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