
College Algebra
10th Edition
ISBN: 9781337282291
Author: Ron Larson
Publisher: Cengage Learning
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Question
Chapter 7.2, Problem 12ECP
To determine
To calculate: The total cost of equipment, for each softball team, who submitted the equipment lists to their sponsors using matrices.
Where the cost of each bat, each ball and each glove are
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Chapter 7 Solutions
College Algebra
Ch. 7.1 - Determine the dimension of the matrix 14710238.Ch. 7.1 - Prob. 2ECPCh. 7.1 - Identify the elementary row operation performed to...Ch. 7.1 - Compare solving the linear system below to solving...Ch. 7.1 - Determine whether the matrix is in row-echelon...Ch. 7.1 - Solve the system 3x+5y+3z=193x+4y+4z=84x8y6z=26.Ch. 7.1 - Prob. 7ECPCh. 7.1 - Prob. 8ECPCh. 7.1 - Solve the system 2x6y+6z=462x3y=31.Ch. 7.1 - Prob. 1E
Ch. 7.1 - Prob. 2ECh. 7.1 - Prob. 3ECh. 7.1 - Prob. 4ECh. 7.1 - Prob. 5ECh. 7.1 - Prob. 6ECh. 7.1 - Prob. 7ECh. 7.1 - Dimension of a Matrix: In Exercises 7-14,...Ch. 7.1 - Dimension of a Matrix: In Exercises 7-14,...Ch. 7.1 - Dimension of a Matrix: In Exercises 7-14,...Ch. 7.1 - Prob. 11ECh. 7.1 - Dimension of a Matrix: In Exercises 7-14,...Ch. 7.1 - Prob. 13ECh. 7.1 - Dimension of a Matrix: In Exercises 7-14,...Ch. 7.1 - Prob. 15ECh. 7.1 - Writing an Augmented Matrix: In Exercises 15-20,...Ch. 7.1 - Writing an Augmented Matrix: In Exercises 15-20,...Ch. 7.1 - Writing an Augmented Matrix: In Exercises 15-20,...Ch. 7.1 - Prob. 19ECh. 7.1 - Prob. 20ECh. 7.1 - Prob. 21ECh. 7.1 - Writing a System of Equations: In Exercises 21-26,...Ch. 7.1 - Prob. 23ECh. 7.1 - Writing a System of Equations: In Exercises 21-26,...Ch. 7.1 - Prob. 25ECh. 7.1 - Prob. 26ECh. 7.1 - Prob. 27ECh. 7.1 - Prob. 28ECh. 7.1 - Prob. 29ECh. 7.1 - Prob. 30ECh. 7.1 - Prob. 31ECh. 7.1 - Elementary Row Operations In Exercises 31-38, fill...Ch. 7.1 - Prob. 33ECh. 7.1 - Prob. 34ECh. 7.1 - Elementary Row Operations In Exercises 31-38, fill...Ch. 7.1 - Prob. 36ECh. 7.1 - Prob. 37ECh. 7.1 - Prob. 38ECh. 7.1 - Prob. 39ECh. 7.1 - Comparing Linear Systems and Matrix Operations: In...Ch. 7.1 - Prob. 41ECh. 7.1 - Prob. 42ECh. 7.1 - Prob. 43ECh. 7.1 - Prob. 44ECh. 7.1 - Prob. 45ECh. 7.1 - Prob. 46ECh. 7.1 - Prob. 47ECh. 7.1 - Prob. 48ECh. 7.1 - Prob. 49ECh. 7.1 - Prob. 50ECh. 7.1 - Prob. 51ECh. 7.1 - Prob. 52ECh. 7.1 - Prob. 53ECh. 7.1 - Using a Graphing Utility: In Exercises 49-54, use...Ch. 7.1 - Prob. 55ECh. 7.1 - Prob. 56ECh. 7.1 - Prob. 57ECh. 7.1 - Prob. 58ECh. 7.1 - Prob. 59ECh. 7.1 - Prob. 60ECh. 7.1 - Prob. 61ECh. 7.1 - Prob. 62ECh. 7.1 - Prob. 63ECh. 7.1 - Prob. 64ECh. 7.1 - Prob. 65ECh. 7.1 - Prob. 66ECh. 7.1 - Prob. 67ECh. 7.1 - Prob. 68ECh. 7.1 - Prob. 69ECh. 7.1 - Prob. 70ECh. 7.1 - Prob. 71ECh. 7.1 - Prob. 72ECh. 7.1 - Prob. 73ECh. 7.1 - Prob. 74ECh. 7.1 - Prob. 75ECh. 7.1 - Gauss-Jordan Elimination: In Exercises 71-78, use...Ch. 7.1 - Prob. 77ECh. 7.1 - Gauss-Jordan Elimination: In Exercises 71-78, use...Ch. 7.1 - Using a Graphing Utility: In Exercises 79-84, use...Ch. 7.1 - Prob. 80ECh. 7.1 - Prob. 81ECh. 7.1 - Prob. 82ECh. 7.1 - Prob. 83ECh. 7.1 - Prob. 84ECh. 7.1 - Prob. 85ECh. 7.1 - Prob. 86ECh. 7.1 - Prob. 87ECh. 7.1 - Curve Fitting: In Exercises 87-92, use a system of...Ch. 7.1 - Prob. 89ECh. 7.1 - Prob. 90ECh. 7.1 - Prob. 91ECh. 7.1 - Prob. 92ECh. 7.1 - Prob. 93ECh. 7.1 - Museum A natural history museum borrows $2,000,000...Ch. 7.1 - Prob. 95ECh. 7.1 - Mathematical Modeling: A video of the path of a...Ch. 7.1 - Prob. 97ECh. 7.1 - Prob. 98ECh. 7.1 - Prob. 99ECh. 7.1 - Prob. 100ECh. 7.2 - Solve for a11, a12, a21 and a22 in the matrix...Ch. 7.2 - Prob. 2ECPCh. 7.2 - For the matrices below, find (a) AB, (b) 3A and...Ch. 7.2 - Prob. 4ECPCh. 7.2 - Prob. 5ECPCh. 7.2 - Prob. 6ECPCh. 7.2 - Prob. 7ECPCh. 7.2 - Prob. 8ECPCh. 7.2 - Prob. 9ECPCh. 7.2 - Prob. 10ECPCh. 7.2 - Prob. 11ECPCh. 7.2 - Prob. 12ECPCh. 7.2 - Prob. 1ECh. 7.2 - Prob. 2ECh. 7.2 - Prob. 3ECh. 7.2 - Prob. 4ECh. 7.2 - Prob. 5ECh. 7.2 - Prob. 6ECh. 7.2 - Prob. 7ECh. 7.2 - Prob. 8ECh. 7.2 - Operations with Matrices: In Exercises 9-16, if...Ch. 7.2 - Operations with Matrices: In Exercises 9-16, if...Ch. 7.2 - Operations with Matrices: In Exercises 9-16, if...Ch. 7.2 - Prob. 12ECh. 7.2 - Operations with Matrices: In Exercises 9-16, if...Ch. 7.2 - Operations with Matrices: In Exercises 9-16, if...Ch. 7.2 - Prob. 15ECh. 7.2 - Prob. 16ECh. 7.2 - Prob. 17ECh. 7.2 - Prob. 18ECh. 7.2 - Prob. 19ECh. 7.2 - Prob. 20ECh. 7.2 - Prob. 21ECh. 7.2 - Prob. 22ECh. 7.2 - Prob. 23ECh. 7.2 - Prob. 24ECh. 7.2 - Prob. 25ECh. 7.2 - Prob. 26ECh. 7.2 - Prob. 27ECh. 7.2 - Solving a Matrix Equation: In Exercises 27-34,...Ch. 7.2 - Prob. 29ECh. 7.2 - Prob. 30ECh. 7.2 - Prob. 31ECh. 7.2 - Prob. 32ECh. 7.2 - Prob. 33ECh. 7.2 - Prob. 34ECh. 7.2 - Finding the Product of Two Matrices: In Exercises...Ch. 7.2 - Finding the Product of Two Matrices: In Exercises...Ch. 7.2 - Prob. 37ECh. 7.2 - Prob. 38ECh. 7.2 - Prob. 39ECh. 7.2 - Prob. 40ECh. 7.2 - Prob. 41ECh. 7.2 - Prob. 42ECh. 7.2 - Prob. 43ECh. 7.2 - Prob. 44ECh. 7.2 - Prob. 45ECh. 7.2 - Prob. 46ECh. 7.2 - Operations with Matrices In Exercises 47-54, if...Ch. 7.2 - Operations with Matrices: In Exercises 47-54, if...Ch. 7.2 - Prob. 49ECh. 7.2 - Prob. 50ECh. 7.2 - Operations with Matrices: In Exercises 47-54, if...Ch. 7.2 - Prob. 52ECh. 7.2 - Prob. 53ECh. 7.2 - Operations with Matrices: In Exercises 47-54, if...Ch. 7.2 - Prob. 55ECh. 7.2 - Prob. 56ECh. 7.2 - Prob. 57ECh. 7.2 - Prob. 58ECh. 7.2 - Prob. 59ECh. 7.2 - Prob. 60ECh. 7.2 - Prob. 61ECh. 7.2 - Prob. 62ECh. 7.2 - Prob. 63ECh. 7.2 - Prob. 64ECh. 7.2 - Prob. 65ECh. 7.2 - Prob. 66ECh. 7.2 - Prob. 67ECh. 7.2 - Vacation Packages: A travel agent identifies four...Ch. 7.2 - Agriculture: A farmer grows apples and peaches....Ch. 7.2 - Revenue: An electronics manufacturer produces...Ch. 7.2 - Labor and Wages: A company has two factories that...Ch. 7.2 - Profit: At a local store, the numbers of gallons...Ch. 7.2 - Prob. 73ECh. 7.2 - Exercise The numbers of calories burned by...Ch. 7.2 - Prob. 75ECh. 7.2 - Prob. 76ECh. 7.2 - Prob. 77ECh. 7.2 - Prob. 78ECh. 7.2 - Prob. 79ECh. 7.2 - Prob. 80ECh. 7.2 - Prob. 81ECh. 7.2 - Prob. 82ECh. 7.2 - Prob. 83ECh. 7.2 - HOW DO YOU SEE IT? A corporation has three...Ch. 7.2 - Prob. 85ECh. 7.2 - Prob. 86ECh. 7.3 - Show that B=1132 is the inverse of A=2131.Ch. 7.3 - Prob. 2ECPCh. 7.3 - Prob. 3ECPCh. 7.3 - Prob. 4ECPCh. 7.3 - Prob. 5ECPCh. 7.3 - Prob. 1ECh. 7.3 - Prob. 2ECh. 7.3 - Prob. 3ECh. 7.3 - Fill in the blanks. If A is an invertible matrix,...Ch. 7.3 - The Inverse of a Matrix: In Exercises 5-12, show...Ch. 7.3 - The Inverse of a Matrix: In Exercises 5-12, show...Ch. 7.3 - Prob. 7ECh. 7.3 - Prob. 8ECh. 7.3 - Prob. 9ECh. 7.3 - Prob. 10ECh. 7.3 - Prob. 11ECh. 7.3 - Prob. 12ECh. 7.3 - Prob. 13ECh. 7.3 - Finding the Inverse of a Matrix: In Exercises...Ch. 7.3 - Prob. 15ECh. 7.3 - Prob. 16ECh. 7.3 - Finding the Inverse of a Matrix: In Exercises...Ch. 7.3 - Finding the Inverse of a Matrix: In Exercises...Ch. 7.3 - Prob. 19ECh. 7.3 - Prob. 20ECh. 7.3 - Prob. 21ECh. 7.3 - Prob. 22ECh. 7.3 - Prob. 23ECh. 7.3 - Finding the Inverse of a Matrix: In Exercises...Ch. 7.3 - Prob. 25ECh. 7.3 - Prob. 26ECh. 7.3 - Prob. 27ECh. 7.3 - Prob. 28ECh. 7.3 - Prob. 29ECh. 7.3 - Prob. 30ECh. 7.3 - Prob. 31ECh. 7.3 - Prob. 32ECh. 7.3 - Prob. 33ECh. 7.3 - Prob. 34ECh. 7.3 - Prob. 35ECh. 7.3 - Prob. 36ECh. 7.3 - Prob. 37ECh. 7.3 - Prob. 38ECh. 7.3 - Prob. 39ECh. 7.3 - Prob. 40ECh. 7.3 - Prob. 41ECh. 7.3 - Prob. 42ECh. 7.3 - Prob. 43ECh. 7.3 - Prob. 44ECh. 7.3 - Prob. 45ECh. 7.3 - Prob. 46ECh. 7.3 - Prob. 47ECh. 7.3 - Prob. 48ECh. 7.3 - Prob. 49ECh. 7.3 - Prob. 50ECh. 7.3 - Prob. 51ECh. 7.3 - Prob. 52ECh. 7.3 - Prob. 53ECh. 7.3 - Prob. 54ECh. 7.3 - Prob. 55ECh. 7.3 - Prob. 56ECh. 7.3 - Investment Portfolio: In Exercise 57 and 58, you...Ch. 7.3 - Prob. 58ECh. 7.3 - Circuit Analysis In Exercises 59-62, consider the...Ch. 7.3 - Prob. 60ECh. 7.3 - Prob. 61ECh. 7.3 - Prob. 62ECh. 7.3 - Raw Materials: In Exercises 63 and 64, find the...Ch. 7.3 - Raw Materials: In Exercises 63 and 64, find the...Ch. 7.3 - Floral Design: A florist is creating 10...Ch. 7.3 - International Travel: The table shows the numbers...Ch. 7.3 - Prob. 67ECh. 7.3 - Prob. 68ECh. 7.3 - Prob. 69ECh. 7.3 - Prob. 70ECh. 7.3 - Prob. 71ECh. 7.3 - Prob. 72ECh. 7.3 - Conjecture Consider matrices of the form...Ch. 7.3 - Prob. 74ECh. 7.3 - Prob. 75ECh. 7.4 - Find the determinant of each matrix. a. A=1231 b....Ch. 7.4 - Prob. 2ECPCh. 7.4 - Prob. 3ECPCh. 7.4 - Prob. 4ECPCh. 7.4 - Prob. 1ECh. 7.4 - Prob. 2ECh. 7.4 - Prob. 3ECh. 7.4 - Prob. 4ECh. 7.4 - Prob. 5ECh. 7.4 - Prob. 6ECh. 7.4 - Prob. 7ECh. 7.4 - Prob. 8ECh. 7.4 - Prob. 9ECh. 7.4 - Prob. 10ECh. 7.4 - Prob. 11ECh. 7.4 - Prob. 12ECh. 7.4 - Prob. 13ECh. 7.4 - Prob. 14ECh. 7.4 - Prob. 15ECh. 7.4 - Prob. 16ECh. 7.4 - Prob. 17ECh. 7.4 - Prob. 18ECh. 7.4 - Prob. 19ECh. 7.4 - Prob. 20ECh. 7.4 - Prob. 21ECh. 7.4 - Prob. 22ECh. 7.4 - Prob. 23ECh. 7.4 - Prob. 24ECh. 7.4 - Prob. 25ECh. 7.4 - Prob. 26ECh. 7.4 - Prob. 27ECh. 7.4 - Prob. 28ECh. 7.4 - Prob. 29ECh. 7.4 - Prob. 30ECh. 7.4 - Prob. 31ECh. 7.4 - Prob. 32ECh. 7.4 - Prob. 33ECh. 7.4 - Prob. 34ECh. 7.4 - Prob. 35ECh. 7.4 - Finding the Determinant of a Matrix In Exercises...Ch. 7.4 - Prob. 37ECh. 7.4 - Prob. 38ECh. 7.4 - Prob. 39ECh. 7.4 - Prob. 40ECh. 7.4 - Prob. 41ECh. 7.4 - Prob. 42ECh. 7.4 - Prob. 43ECh. 7.4 - Prob. 44ECh. 7.4 - Prob. 45ECh. 7.4 - Prob. 46ECh. 7.4 - Prob. 47ECh. 7.4 - Prob. 48ECh. 7.4 - Prob. 49ECh. 7.4 - Prob. 50ECh. 7.4 - Prob. 51ECh. 7.4 - Prob. 52ECh. 7.4 - Prob. 53ECh. 7.4 - Prob. 54ECh. 7.4 - Prob. 55ECh. 7.4 - Prob. 56ECh. 7.4 - Prob. 57ECh. 7.4 - Prob. 58ECh. 7.4 - Prob. 59ECh. 7.4 - Prob. 60ECh. 7.4 - Prob. 61ECh. 7.4 - Prob. 62ECh. 7.4 - Prob. 63ECh. 7.4 - Prob. 64ECh. 7.4 - Prob. 65ECh. 7.4 - Prob. 66ECh. 7.4 - Prob. 67ECh. 7.4 - Prob. 68ECh. 7.4 - Prob. 69ECh. 7.4 - Prob. 70ECh. 7.4 - Prob. 71ECh. 7.4 - Prob. 72ECh. 7.4 - Prob. 73ECh. 7.4 - Prob. 74ECh. 7.4 - Verifying an Equation In Exercises 75-80, find the...Ch. 7.4 - Prob. 76ECh. 7.4 - Prob. 77ECh. 7.4 - Prob. 78ECh. 7.4 - Prob. 79ECh. 7.4 - Prob. 80ECh. 7.4 - Prob. 81ECh. 7.4 - Prob. 82ECh. 7.4 - Prob. 83ECh. 7.4 - Prob. 84ECh. 7.4 - Prob. 85ECh. 7.4 - Prob. 86ECh. 7.4 - Prob. 87ECh. 7.4 - Prob. 88ECh. 7.4 - Prob. 89ECh. 7.4 - Prob. 90ECh. 7.4 - Prob. 91ECh. 7.4 - Prob. 92ECh. 7.4 - Prob. 93ECh. 7.4 - Prob. 94ECh. 7.4 - Prob. 95ECh. 7.4 - Prob. 96ECh. 7.4 - Prob. 97ECh. 7.4 - Prob. 98ECh. 7.4 - Prob. 99ECh. 7.4 - Prob. 100ECh. 7.4 - Prob. 101ECh. 7.4 - Prob. 102ECh. 7.4 - Prob. 103ECh. 7.5 - Prob. 1ECPCh. 7.5 - Prob. 2ECPCh. 7.5 - Prob. 3ECPCh. 7.5 - Prob. 4ECPCh. 7.5 - Prob. 5ECPCh. 7.5 - Find the image of the square in Example 6 after a...Ch. 7.5 - Prob. 7ECPCh. 7.5 - Prob. 8ECPCh. 7.5 - Prob. 9ECPCh. 7.5 - Prob. 10ECPCh. 7.5 - Prob. 1ECh. 7.5 - Prob. 2ECh. 7.5 - Prob. 3ECh. 7.5 - Prob. 4ECh. 7.5 - Fill in the blanks. To encode a message, create an...Ch. 7.5 - Fill in the blanks. A message encoded using an...Ch. 7.5 - Prob. 7ECh. 7.5 - Prob. 8ECh. 7.5 - Prob. 9ECh. 7.5 - Prob. 10ECh. 7.5 - Prob. 11ECh. 7.5 - Prob. 12ECh. 7.5 - Prob. 13ECh. 7.5 - Prob. 14ECh. 7.5 - Prob. 15ECh. 7.5 - Prob. 16ECh. 7.5 - Prob. 17ECh. 7.5 - Prob. 18ECh. 7.5 - Prob. 19ECh. 7.5 - Prob. 20ECh. 7.5 - Area of Infestation A large region of forest is...Ch. 7.5 - Botany: A botanist is studying the plants growing...Ch. 7.5 - Prob. 23ECh. 7.5 - Prob. 24ECh. 7.5 - Prob. 25ECh. 7.5 - Prob. 26ECh. 7.5 - Prob. 27ECh. 7.5 - Prob. 28ECh. 7.5 - Prob. 29ECh. 7.5 - Prob. 30ECh. 7.5 - Prob. 31ECh. 7.5 - Prob. 32ECh. 7.5 - Prob. 33ECh. 7.5 - Prob. 34ECh. 7.5 - Finding an Equation of a Line In Exercises 31-36,...Ch. 7.5 - Prob. 36ECh. 7.5 - Prob. 37ECh. 7.5 - Prob. 38ECh. 7.5 - Prob. 39ECh. 7.5 - Prob. 40ECh. 7.5 - Prob. 41ECh. 7.5 - Prob. 42ECh. 7.5 - Prob. 43ECh. 7.5 - Prob. 44ECh. 7.5 - Prob. 45ECh. 7.5 - Encoding a Message: In Exercises 45 and 46, (a)...Ch. 7.5 - Encoding a Message In Exercises 47 and 48, (a)...Ch. 7.5 - Encoding a Message In Exercises 47 and 48, (a)...Ch. 7.5 - Prob. 49ECh. 7.5 - In Exercises 49-52, write a cryptogram for the...Ch. 7.5 - In Exercises 49-52, write a cryptogram for the...Ch. 7.5 - In Exercises 49-52, write a cryptogram for the...Ch. 7.5 - Prob. 53ECh. 7.5 - Decoding a Message: In Exercises 53-56, use A1 to...Ch. 7.5 - Decoding a Message: In Exercises 53-56, use A1to...Ch. 7.5 - Prob. 56ECh. 7.5 - Prob. 57ECh. 7.5 - Prob. 58ECh. 7.5 - Decoding a Message: The cryptogram below was...Ch. 7.5 - Decoding a Message: The cryptogram below was...Ch. 7.5 - Circuit Analysis: Consider the circuit shown in...Ch. 7.5 - Prob. 62ECh. 7.5 - Prob. 63ECh. 7.5 - Prob. 64ECh. 7.5 - Prob. 65ECh. 7.5 - Prob. 66ECh. 7.5 - Prob. 67ECh. 7 - Dimension of a Matrix: In Exercises 1-4, determine...Ch. 7 - Prob. 2RECh. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - Writing an Augmented Matrix: In Exercises 5 and 6,...Ch. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Gaussian Elimination with Back-Substitution In...Ch. 7 - Prob. 19RECh. 7 - Prob. 20RECh. 7 - Prob. 21RECh. 7 - Prob. 22RECh. 7 - Prob. 23RECh. 7 - Prob. 24RECh. 7 - Prob. 25RECh. 7 - Prob. 26RECh. 7 - Prob. 27RECh. 7 - Prob. 28RECh. 7 - Prob. 29RECh. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 7 - Prob. 32RECh. 7 - Prob. 33RECh. 7 - Prob. 34RECh. 7 - Prob. 35RECh. 7 - Prob. 36RECh. 7 - Prob. 37RECh. 7 - Prob. 38RECh. 7 - Prob. 39RECh. 7 - Prob. 40RECh. 7 - Prob. 41RECh. 7 - Prob. 42RECh. 7 - Prob. 43RECh. 7 - Prob. 44RECh. 7 - Prob. 45RECh. 7 - Prob. 46RECh. 7 - Prob. 47RECh. 7 - Prob. 48RECh. 7 - Prob. 49RECh. 7 - Prob. 50RECh. 7 - Prob. 51RECh. 7 - Prob. 52RECh. 7 - Prob. 53RECh. 7 - Prob. 54RECh. 7 - Prob. 55RECh. 7 - Prob. 56RECh. 7 - Prob. 57RECh. 7 - Prob. 58RECh. 7 - Prob. 59RECh. 7 - Prob. 60RECh. 7 - Prob. 61RECh. 7 - Prob. 62RECh. 7 - Prob. 63RECh. 7 - Prob. 64RECh. 7 - Prob. 65RECh. 7 - Prob. 66RECh. 7 - Prob. 67RECh. 7 - Finding the Inverse of a Matrix: In Exercises...Ch. 7 - Prob. 69RECh. 7 - Prob. 70RECh. 7 - Prob. 71RECh. 7 - Prob. 72RECh. 7 - Prob. 73RECh. 7 - Prob. 74RECh. 7 - Prob. 75RECh. 7 - Prob. 76RECh. 7 - Prob. 77RECh. 7 - Prob. 78RECh. 7 - Prob. 79RECh. 7 - Prob. 80RECh. 7 - Prob. 81RECh. 7 - Prob. 82RECh. 7 - Prob. 83RECh. 7 - Prob. 84RECh. 7 - Prob. 85RECh. 7 - Prob. 86RECh. 7 - Prob. 87RECh. 7 - Prob. 88RECh. 7 - Prob. 89RECh. 7 - Prob. 90RECh. 7 - Prob. 91RECh. 7 - Prob. 92RECh. 7 - Prob. 93RECh. 7 - Prob. 94RECh. 7 - Prob. 95RECh. 7 - Prob. 96RECh. 7 - Prob. 97RECh. 7 - Prob. 98RECh. 7 - Prob. 99RECh. 7 - Prob. 100RECh. 7 - Prob. 101RECh. 7 - Prob. 102RECh. 7 - Prob. 103RECh. 7 - Prob. 104RECh. 7 - Prob. 105RECh. 7 - Using Cramer’s Rule: In Exercises 105-108, use...Ch. 7 - Prob. 107RECh. 7 - Prob. 108RECh. 7 - Prob. 109RECh. 7 - Prob. 110RECh. 7 - Prob. 111RECh. 7 - Prob. 112RECh. 7 - Prob. 113RECh. 7 - Prob. 114RECh. 7 - Prob. 115RECh. 7 - Prob. 116RECh. 7 - Prob. 117RECh. 7 - Finding the Area of a Parallelogram: In Exercises...Ch. 7 - Prob. 119RECh. 7 - Prob. 120RECh. 7 - Prob. 121RECh. 7 - Prob. 122RECh. 7 - Prob. 123RECh. 7 - Prob. 124RECh. 7 - Prob. 1TCh. 7 - Prob. 2TCh. 7 - Prob. 3TCh. 7 - Prob. 4TCh. 7 - Prob. 5TCh. 7 - Prob. 6TCh. 7 - Prob. 7TCh. 7 - Prob. 8TCh. 7 - Prob. 9TCh. 7 - Prob. 10TCh. 7 - Prob. 11TCh. 7 - Prob. 12TCh. 7 - Prob. 13TCh. 7 - Prob. 14TCh. 7 - One hundred liters of a 50% solution is obtained...Ch. 7 - Prob. 1PSCh. 7 - Prob. 2PSCh. 7 - Prob. 3PSCh. 7 - Prob. 4PSCh. 7 - Prob. 5PSCh. 7 - Satellite Television: Two competing companies...Ch. 7 - Prob. 7PSCh. 7 - Finding a Value: Find x such that the matrix is...Ch. 7 - Prob. 9PSCh. 7 - Prob. 10PSCh. 7 - Prob. 11PSCh. 7 - Prob. 12PSCh. 7 - Prob. 13PSCh. 7 - Prob. 14PSCh. 7 - Prob. 15PSCh. 7 - Prob. 16PSCh. 7 - Decoding a Message: Use the inverse of A to decode...Ch. 7 - Prob. 18PSCh. 7 - Prob. 19PSCh. 7 - Prob. 20PS
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- Suppose that 7000 is placed in an accout that pays 4% interest. Interest compunds each year. Assume that no withdraws are made. How much would the account have after 1 year? And how much would the account have after 2 years?arrow_forwardUse substitution to solve the equations -2x+5y=18 x=2y-8arrow_forward5) For each function represented by an equation, make a table and plot the corresponding points to sketch the graph of the function. (a) y = 75 ()* 220 X y 200- -2 180 160 -1 140 0 120 100 1 60 80 2 3 4 x (b) y = 20 ()* 1 60 40 20 20 0 2 3 65- -1 X y 60 -2 55- 50 45 44 40 0 35- 30 1 25 2 20 20 15 3 10 5 LO 4 3-2 T -1 0 5- 4- -3- 2-arrow_forward
- A system of inequalities is shown. y 5 3 2 1 X -5 -4 -3 -2 -1 0 1 2 3 4 5 -1- Which system is represented in the graph? Oy>-x²-x+1 y 2x²+3 -2 -3 тarrow_forwardWhich set of systems of equations represents the solution to the graph? -5 -4 -3 -2 Of(x) = x² + 2x + 1 g(x) = x²+1 f(x) = x²+2x+1 g(x) = x²-1 f(x) = −x² + 2x + 1 g(x) = x²+1 f(x) = x² + 2x + 1 g(x) = x²-1 -1 5 y 4 3 2 1 0 -1- -2 -3- -4. -5 1 2 3 4 5arrow_forwardWhich of the graphs below correctly solves for x in the equation -x² - 3x-1=-x-4? о 10 8 (0,2) -10 -8 -6 -2 2 4 6 8 10 (-4,-2) -2 + (0,2) (4,6) -10-8-6-4-2 -2 2 4 6 8 10 (-3, -1) -2 2 (1-5) -6 -8 -10 10 -10-8-6-4-2 2 6 8 10 (2,0)arrow_forward
- 1) Express these large and small numbers from the Read and Study section in scientific notation: (a) 239,000 miles (b) 3,800,000,000,000 sheets of paper (c) 0.0000000000000000000000167 grams 2) Find all values for the variable x that make these equations true. (a) 5x = 1 (b) 3x = 1/1 9 (c) 4* = 11/ 4 (e) 4* = 64 (g) 10x = 1,000,000 (d) 3x=-3 (f) 2x = = 8 (h) 10x = 0.001arrow_forward(b) 4) Find an equation to fit each of the following graphs: (a) 20 20 18 16 14 12 10 8 6 4 2 24 22 20 18 16 14 12 10 8 16 A 2 -3 -2 -1-0 2 3 4. -1 0 1 2 3. -2 -2arrow_forward3) Which of the following are equivalent to 3? (There may be more than one that is equivalent!) -1 (a) (9)¯¹ 3. (b) (-3)-1 (c) (-3) -1 (d) -(¯3) (e) 11 3-1 (f) 3-4arrow_forward
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