Matrices and Their Inverses — Test Answers
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21
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Janelle wrote the matrix addition below.Which statement is true?
A
mc017-2.jpg
B
mc017-3.jpg
C
mc017-4.jpg
D
mc017-5.jpg
22
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Given and .What is X if ?
A
mc005-4.jpg
B
mc005-5.jpg
C
mc005-6.jpg
D
mc005-7.jpg
23
Which matrix multiplication is possible?
A
mc014-1.jpg
B
mc014-2.jpg
C
mc014-3.jpg
D
mc014-4.jpg
24
Given matrix Y = and matrix Z = . What is matrix X if ?
A
mc007-4.jpg
B
mc007-5.jpg
C
mc007-6.jpg
D
mc007-7.jpg
25
Ramone wrote the following matrix equation.Which explains why Ramone’s equation has no solution?
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.
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