3: for the following set of simultaneous equations: (a) form the augmented coefficient matrix (b) solve the equations by gaussian elimination x1 +2x2 3x3-5 3x1-x2 + 2x3 = 8 4x1 6x2 -4x3-2

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0