Posted by erin on Saturday, July 28, 2007 at 3:55pm.
1)Cramer's Rule is used to solve the system of equations:3m-5n=12,4m+7n=-5
Which determinant represents the numerator for n?
2)Cramer's Rule is used to solve the system of equations:3x-y+2z=17,4x+2y-3z=10,and 2x+5y-9z=-6
Which determinant represents the numerator for z?
answer=[3 -1 17]
[4 2 10]
[2 5 -6]
3)Which matrix would NOT be used to write a matrix equation for the system of equations:5m-2n=13 and -m+n=-2?
4)Which product would be used to solve the matrix equation below by using inverse matrices?
[3 -4][a] 
[2 1] [b]= 
answer=1/11[1 4] 
Thanks for the help:)
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