AnswersTX-Advanced Quantitative ReasoningScalar and Matrix Multiplication

Scalar and Matrix Multiplication — Unit test Answers

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

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
22
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Which is a coefficient matrix for the system of linear equations?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
23

What is the determinant of the coefficient matrix of the system ?

Question illustration
A
–158
B
–117
C
65
D
117
24

The matrix equation below can be used to solve a system of linear equations. What is the solution to the system?

Question illustration
A
, y = 1
Option A
B
,
Option B
C
The system has no solution.
D
The system has infinite solutions.
25

In the equation below, variables S, T, and U represent three matrices. Which property of matrix addition is illustrated below?

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

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