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Adding and Subtracting Matrices Answers

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In the equation below, variables X and Y represent two matrices. Which property of matrix addition is illustrated below?

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A
inverse property
B
commutative property
C
associative property
D
identity property
2
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In the equation below, variables S, T, and U represent three matrices. Which property of matrix addition is illustrated below?

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A
associative property
B
identity property
C
inverse property
D
commutative property
3

What is the sum of the matrices shown below?

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Option D
4

What is the value of D in the matrix equation below?

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5

Which property is shown in the matrix addition below?

Question illustration
A
inverse property
B
identity property
C
commutative property
D
associative property
6

Which property is shown in the matrix addition below?

Question illustration
A
commutative property
B
associative property
C
inverse property
D
identity property
7

Paul is taking inventory of unsold ladies’ dresses from last month. The following matrix shows how many of each dress were left in red, blue, white, and green. The matrix below shows the new stock of the same color dresses that arrived in the store today. Which matrix shows the total number of dresses of each color and size that Paul has in stock before any sales were made today?

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8

What is the difference of the matrices shown below?

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mc003-2.jpg
Option A
B
mc003-3.jpg
Option B
C
mc003-4.jpg
Option C
D
mc003-5.jpg
Option D
9

What is the sum of the matrices shown below?

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A
mc002-2.jpg
Option A
B
mc002-3.jpg
Option B
C
mc002-4.jpg
Option C
D
mc002-5.jpg
Option D
10

Four, two-person tennis teams played tennis matches. Ivan collected the number of points won by both players on each team and arranged the information into matrices as shown. Consider the total number of points played by each tennis team. How many teams won 60 points or less?

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A
0
B
1
C
2
D
3
11

A polygon has vertices at (–5, 3), (–1, 3), (1, 0), and (–3, 0). Which represents a geometric translation of the given polygon 4 units to the right and 5 units down?

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12

What are , , and of matrix C?

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13

Ramone wrote the following matrix equation.Which explains why Ramone’s equation has no solution?

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A
There is no number that when summed with 8 equals 0.
B
The matrices must be of the same size in order to perform addition or subtraction.
C
The sum of 8 and –12 is not 3.
D
The matrices must measure in order to be added together.
Option D
14

What are the values of a, b, and c in the matrix addition below?

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