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Sally went to the store and purchased 3 skirts, 4 dresses and 6 shirts. Anna went to the store and purchased 3 skirts, 3 dresses and 3 shirts. Each skirt costs $29, each dress cost $26, and each shirt costs $9. a) Write a 2 x 3 matrix summarizing the purchases made by Sally and Anna. (Keep the order of information). b) Write a 3 x 1 matrix summarizing the cost (in dollars) of the items. (Keep the order of information). c) Use matrix multiplication to find a 2 x 1 matrix summarizing the total amount (in dollars) spent by Sally and Anna.

Sally went to the store and purchased 3 skirts, 4 dresses and 6 shirts. Anna went to the store and purchased 3 skirts, 3 dresses and 3 shirts. Each skirt costs $29, each dress cost $26, and each shirt costs $9. a) Write a 2 x 3 matrix summarizing the purchases made by Sally and Anna. (Keep the order of information). b) Write a 3 x 1 matrix summarizing the cost (in dollars) of the items. (Keep the order of information). c) Use matrix multiplication to find a 2 x 1 matrix summarizing the total amount (in dollars) spent by Sally and Anna.

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.3: Matrix Algebra
Problem 85E: Determine if the statement is true or false. If the statement is false, then correct it and make it...
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Sally went to the store and purchased 3 skirts, 4 dresses and 6 shirts. Anna went to the store and purchased 3 skirts, 3 dresses and 3 shirts. Each skirt costs $29, each dress cost $26, and each shirt costs $9. a) Write a 2 x 3 matrix summarizing the purchases made by Sally and Anna. (Keep the order of information). b) Write a 3 x 1 matrix summarizing the cost (in dollars) of the items. (Keep the order of information). c) Use matrix multiplication to find a 2 × 1 matrix summarizing the total amount (in dollars) spent by Sally and Anna.
Transcribed Image Text:Sally went to the store and purchased 3 skirts, 4 dresses and 6 shirts. Anna went to the store and purchased 3 skirts, 3 dresses and 3 shirts. Each skirt costs $29, each dress cost $26, and each shirt costs $9. a) Write a 2 x 3 matrix summarizing the purchases made by Sally and Anna. (Keep the order of information). b) Write a 3 x 1 matrix summarizing the cost (in dollars) of the items. (Keep the order of information). c) Use matrix multiplication to find a 2 × 1 matrix summarizing the total amount (in dollars) spent by Sally and Anna.
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