1.   What are the dimensions of the matrix?
    A. 2 × 3 B. 4 × 2
    C. 3 × 2 D. 6
    Hint

  2.   If A = , what is 5A?
    A.
    B.
    C.
    D.
    Hint

  3.   Suppose the matrix represents the records of the top four teams in a baseball season. If someone used this matrix to predict the total number of wins and losses by the second place team in the next decade (ten years), how many wins and losses would they predict?
    A. 980 wins, 950 losses B. 950 wins, 670 losses
    C. 980 wins, 640 losses D. 910 wins, 710 losses
    Hint

  4.   Find AC.
   
    A. B.
    C. impossible D.
    Hint

  5.   Find BA.
   
    A. B. impossible
    C. D.
    Hint



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