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ch 5
inequalities and compound sentences
Question | Answer |
---|---|
what is a compound sentence? | A sentence in which two clauses are connected by the word and or by the word. |
which property is the following.. if a < b, then a + c < b + c | addition property of ineqality |
solve the system. {x + y= 9 {2x - y= 2 | The solution is (11/3,16/3) |
What is a square matrices? | Those with the same number of rows and columns. |
State the system-determinant theorem. | a 2x2 system has exsactly one solution if and only if the determinant of the coefficient matrix is not zero. |
for what value of n does the system below have infinitely many solutions? {-3x + 2y = 7 { 9x + ny =-21 | -6 |
What is the solution set for a system? | The intersection of the solution sets for the individual sentences. |