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On Tuesday, a store sold 12 compact discs, 5 cassettes, and 9 videos. On Wednesday,...
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In order to construct this matrix, we must first decide on how we wish to organize the data. How you choose to do so doesn't particularly matter so long as you use it consistently if you use this matrix to later solve a mathematical problem.
For this case, we will assign rows to the different days, and columns to the different types of media. Therefore, the matrix should be of this form:
# Discs on Tues. # Discs on Wed.
# Cassettes on Tues. # Cassettes on Wed.
# Videos on Tues. # Cassettes on Wed.
# Tickets on Tues. # Cassettes on Wed.
Finally, substituting the data we have:
Posted by crmhaske on May 9, 2013 at 5:00 PM (Answer #1)
Let us construct the matrix by methodically putting days in columns, and sold items in rows. The result would then be a 4 × 2 matrix with assignments like this:
no. of discs no. of discs
no. of cassettes no. of cassettes
no. of videos no. of videos
no. of concert tickets no. of concert tickets
and then, the result matrix (R) will be represented as:
`R = [[12,19],[5,3],[9,9],[0,35]]`
Posted by llltkl on May 9, 2013 at 5:35 PM (Answer #2)
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