Jacob is reading a great thriller. The table shows a proportional relationship between the number of pages he reads and the numb
er of hours he spends each week reading. What is the constant of proportionality in pages per hour?
2 answers:
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Given:
The matrix multiplication
To find:
The order of resulting matrix.
Solution:
We know that, if order of first matrix is and the order of second matrix is
, then the order of these two matrices is
.
We have,
Here, the order of first matrix is and the order of the second matrix is
. So, the order of the second matrix is
. It is also written are 2 by 1.
Therefore, the correct option is A.