Posted by **Kris** on Thursday, March 28, 2013 at 5:35pm.

I need help with these! I got B for 1. C for 2. and D for 3. Thanks for the help!

1.) Find the values of a, b, and c that will make the statement true.

[5 a -2] [5 102]

[3 4 –b] = [-3 -4 3]

[2c 5 9] [-2 5 9]

a.) 8R1-R2--> =R2

b.) -8R1-R2 -> =R2

c.) –8R1 +R2 -> =R2

d.) 8R1-R2 -> =R2

2.) Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter.

-x+y+z=0

3x+2y+5z=18

15x+10y+25z=89

A.) (3,2,1)

B.) (3,2,0)

C.) Coincident dependence; {(x,y,z) |-x+y-z=0

D.) No solution, inconsistent

3.) Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter.

X+y-z=3

x-y-2z=6

2x-y+z=3

A.) (0,0,-4)

B.) (0,0,-3)

C.) Coincident dependence; {(x,y,z) | -x+y-z=3

D.) No solution, inconsistent

## Answer this Question

## Related Questions

- Math - what is the solution to the system of equations? 5x + 4y = 8 x - 2y = 10...
- algebra - (38) please help me figure this out. The multiple choice answers did ...
- algbrea - Francine and Cheryl received equal scores on a test made up of ...
- Math - 12+4n/3 = 8 Not multiple choice.. trying to find n. My answer is 7 9a - 3...
- Algebra - Complete the table for each function. 1. f(x) = √x The x values ...
- algebra - I need to find the inverse of this function f(x)=9x+7 please show ...
- Math - 14+2m = 4m - 16 (no multiple choice) I don't understand it 4(x +2) = 14...
- Math - a 10 question multiple choice test has 4 possible answer for each ...
- Algebra Multiple Choice - Hello, This is the last of questions I have for my ...
- Math - What is the probability of rolling a number cube and getting an even ...