Let matrix A represent the sales (in thousands of dollars) for the Walbash Company in 2018 in
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Let matrix A represent the sales (in thousands of dollars) for the Walbash Company in 2018 in various cities, and let matrix B represent the sales (in thousands of dollars) for the same company in 2019 in the same cities.
(a) Write the matrix that represents the total sales by type and city for both years.
(b) Write the matrix that represents the change in sales by type and city from 2018 to 2019.
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Mathematical Applications For The Management, Life And Social Sciences
ISBN: 9781337625340
12th Edition
Authors: Ronald J. Harshbarger, James J. Reynolds
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