Wednesday
April 23, 2014

Homework Help: algebra

Posted by Mandung on Monday, January 14, 2013 at 11:25am.

1 A + (B + C)= (A + B) + C
associative
scalar quantity
dot product
2

2



2


3 Two systems of linear equations involving the same variables are said to be _______ if they have the same solution set.
set
associative
equivalent
parallel

4 Compute the determinant of :

8
4
3
-2

5 Compute the determinant of :

130
24
58
86

6

5
-5
4
-4

7 Compute the determinant using elements in the first row:

-7
32
-27
3

8 Find x by the use of determinant : 3x-4y+2z+8=0, x+5y-3z+2=0, 5x+3y-z+6+0
3
5
2
-2

9 Find z by the use of determinant : 3x-4y+2z+8=0, x+5y-3z+2=0, 5x+3y-z+6=0
6
7
3
5

10 A + B = B + A
associative
m
commutative
m-n

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