Matrices Addition Subtraction and Multiplication

Perform the indicated operation.  If it’s not possible, select Not Possible. 

• 7
  -7
  -6
  20

• 7 
  -9
  -6
  20

• Not Possible

• 7
  -9
  2
  20

• -5

• 5

• 0

• 2

Which sums can NOT be made from the following matrices ?

• A+A

• A+C

• B+D

• C+C

Matrix A is a 2x1 matrix. Matrix B is a 3x2 matrix. Matrix C is 3x1 matrix. Which statement(s) are true.

• A + B results in a 5x3 matrix.

• Matrix C has the same dimensions as the matrix produced from A * B.

• None of the matrices could be added together.

• B × A is possible but A × B is not possible.

• C × A is possible.

• 3

• 2

• 1

• 0

Find matrix C = AB

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• 
• 
• 

Find matrix C= BA

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• 

Find A + B

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• 
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Find Y - X

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• 
• 
• 

• 46

• 38

• 27

• 12