Saturday

February 28, 2015

February 28, 2015

Posted by **Becca** on Thursday, March 28, 2013 at 10:31am.

1. 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.

-3x+y-z=-4

6x-2y+2z=8

-12x+4y-4z=-16

A.)(1,1,2)

B.)(0, -2)

C.) (0,-3)

D.) (-1,-2)

2. Solve the system by triangularizing the augmented matrix and using back substitution.

6x=y-4

3y=-13-7x

a.) (-1,-3)

b.) (0,-2)

C.) (0,-3)

D.) (-1,-2)

3. What row operation would produce zero beneath the first entry in the diagonal?

1 2 | -1

8 -2 | -2

A.) 8R1-R2--> R2

B.) -8R1-R2 -->R2

C.) -R1+R2 --> R2

D.) 8R1-R2 --> R2

- Algebra multiple choice! -
**saiko**, Thursday, March 28, 2013 at 10:56amfor 2 answer is <d>

1 is ok

**Answer this Question**

**Related Questions**

Algebra Multiple choice revised!! HELP - I have a few questions I need help with...

algbrea - Francine and Cheryl received equal scores on a test made up of ...

algebra - I need to find the inverse of this function f(x)=9x+7 please show ...

Algebra Multiple Choice - Hello, This is the last of questions I have for my ...

Algebra - A test consist of 15 multiple choice questions, 12 true-false ...

Math please check - I think I have the right answer, but I am not 100% sure how ...

Calculus Please Help - I think I have the right answer, but I am not 100% sure ...

MATH - A sphere has five times the volume of a right cone that has a radius of 4...

algebra - I have a few problems I need you to take a look at and tell me if I ...

Algebra - I have a few problems I need you to take a look at and tell me if I ...