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Type: Multiple-Choice
Category: Matrices
Level: Grade 12
Standards: HSN-VM.C.9
Author: nsharp1
Created: 5 years ago

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Grade 12 Matrices CCSS: HSN-VM.C.9

Can the following matrix expression be evaluated? Why or why not?

$[[3,-4],[0,-1],[9,1]] \ * ( [[0,1],[1,0]] + [[-5,-9],[-1,4]] )$

Yes, but only as is (one cannot distribute the 3-by-2 matrix).
Yes, either as is, or if the distributive property is applied.
No, after performing the addition of the two smaller matrices, the new dimensions will not allow for multiplication with the left-most matrix.
No, all matrices must be have the same dimensions.