30425773
Description
Flashcards by Elexali Olayvar, updated more than 1 year ago
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Created by Elexali Olayvar
over 3 years ago
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| Question | Answer |
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D. 0.5 |
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B.(6, 7) |
| Joanne bought 3 baseball cards for $160. If the first card was as expensive as the combined price of the second and the third cards, and the second card cost $20 more than the third card, what is the price of the first card? A. 80 B. 50 C. 100 D. 60 | A. 80 |
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C and D |
| The commutative property holds for the _____ of two matrices but does not hold for the______ of two matrices. | addition subtraction |
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C |
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C. 5 × 3 |
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C |
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-393, -74, 287 -471, 222, -91 251, -222, -349 |
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C |
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C |
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D |
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-12 14 |
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D |
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D |
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-7 -25 |
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C |
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1st 3rd |
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2 11 11 -2 (https://brainly.com/question/11348371) |
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2nd 3rd |
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B |
| Which statement about inverse matrices is true? A. An inverse matrix is always a square matrix. B. An inverse matrix is never a square matrix. C. The determinant of an inverse matrix is always zero. D. There always exists a square matrix A-1 for which AA-1 = l. | A. An inverse matrix is always a square matrix. |
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B |
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C. No, because its determinant is zero. |
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C |
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4th 6th |
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3 -10.5 |
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B |
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