AnswersGA-Advanced Algebra Concepts and Connections CRScalar and Matrix Multiplication

Matrices and Their Inverses Answers

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Which value of t makes the two matrices inverses of each other?

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A
–3
B
–2
C
2
D
3
2
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What is the inverse of the matrix below?

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Option A
B
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C
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Option C
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Option D
3

Which value of x would make the following matrix singular?

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A
–27
B
–10
C
10
D
27
4

Which pair of matrices are inverses of each other?

A
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Option A
B
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Option B
C
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Option C
D
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Option D
5

Which statement is true about the determinant of a matrix?

A
The determinant of a singular matrix is equal to zero.
B
The determinant of an inverse matrix is equal to zero.
C
The determinant of an identity matrix is equal to zero.
D
The determinant of a zero matrix is equal to one.
6

Which value of y makes the two matrices inverses of each other?

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A
Option
Option A
B
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Option B
C
Option
Option C
D
2
7

If C and D are matrices and C is the inverse of D, which of the following is true?

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Option A
B
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Option B
C
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Option C
D
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Option D
8

Matrices A and B are shown below. What values of x and y will make the equation AB = I true?

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Option A
B
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Option B
C
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Option C
D
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Option D
9

If A and B are matrices and AB = I, which of the following represents the value of B?

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Option A
B
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Option B
C
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Option C
D
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Option D
10

Which expression represents the inverse of the matrix below?

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A
Option
Option A
B
Option
Option B
C
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Option C
D
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Option D

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