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Get Full Access to California Algebra 2: Concepts, Skills, And Problem Solving - 1 Edition - Chapter 8.4 - Problem 48
Get Full Access to California Algebra 2: Concepts, Skills, And Problem Solving - 1 Edition - Chapter 8.4 - Problem 48

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# Solved: Describe two real life quantities that vary directly with each other and two

ISBN: 9780078778568 361

## Solution for problem 48 Chapter 8.4

California Algebra 2: Concepts, Skills, and Problem Solving | 1st Edition

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California Algebra 2: Concepts, Skills, and Problem Solving | 1st Edition

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Problem 48

Describe two real life quantities that vary directly with each other and two quantities that vary inversely with each other.

Step-by-Step Solution:
Step 1 of 3

7.1 – Matrix size = number of rows by number of columns Add/Subtract matrices = same size matrices Vector = one column or one row Equality = same size and values 7.2 ­ Multiply matrices – column of first matrix = row of second matrix Ex: (3 X 3 ) ( 3 X 2) = ( 3 X 2) Ex: Multiply matrix and vector ­ Matrix Multiplication = Not Commutative AB BA Transpositions of matrices and vectors A = A = Symmetric matrices­ square matrices = A = AT Skew­ Symmetric matrices – A = ­ A Upper Triangle = square matrices = nonzero on and above main diagonal – 0 below main diagonal Lower Triangle = square matrices = nonzero on and below main diagonal – 0 above main diagonal Main Diagonal = 0 or not

Step 2 of 3

Step 3 of 3

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