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## Discrete Math Unit 1 and 2 ReviewAuthor: Sturdivant VictoriaDescription: match each to its correct pair.Keywords: , , , , , , online teachingContent:Definitions: 0. rational numbers 1. How do I solve a system by matrices 2. What is a row matrix? 3. When can I multiply matrices 4. irrational numbers 5. inverse of matrix A 6. transpose a matrix 7. integers only 8. when can I multiply a scalar by a matrix 9. ways to solve systems of equations 10. whole numbers only 11. determinant 12. natural numbers only 13. inverse of a matrix 14. when is the inverse undefined 15. How do I find the resulting dimensions from matrix multiplication Answers: 0. .5, -1.5, 0, 10 squrt (100) 1. (1/ad-bc) times [d -b] [-c a] 2. when the dimensions are 1x4 3. Inverse of the coefficient matrix times the constant matrix 4. switch the rows and columns 5. when the determinant is 0. 6. -5, 0, 4 squrt (64) 7. substitution elimination matrices graping 8. 5, squrt (36), 10 9. ad-bc 10. this is always defined, just multiply b a constant 11. when the row of the second matrix equals to column of the first matrix 12. use the row of the first matrix and the column of the second matrix. 13. 0, squrt (25), 4 14. A^-1 15. squrt(2) squrt (8) |