hw2-3 - 6 48a. [ ] 050 , 16 400 , 15 48b. $15,400 is the...

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Math 1160 – Section 2.3 Answer Key 4. 2 x 2 square identity matrix 8. Entry a 23 is –1 (row 2, column 3) Entry a 11 is 2 (row 1, column 1) 14. - - 5 . 2 . 5 . 2 . 16. [ ] 5 . 20. Defined b 3 x 4 matrix 22. Defined b 1 x 1 matrix 24. Not defined 32. - - 11 5 3 3 6 1 2 10 8 36. –3x + 4y = 1 y = 1 40. - - 4 2 2 5 x y x =
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Unformatted text preview: 6 48a. [ ] 050 , 16 400 , 15 48b. $15,400 is the amount of monthly sales for Store 1 $16,050 is the amount of monthly sales for Store 2 56a. 000 , 47 000 , 42 500 , 97 000 , 86 500 , 260 000 , 232 56b. 86,000 sick males 56c. 47,000 female carriers...
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