2 -1 7. Evaluate:| 2 |-2 3 -21 15 9 8. Evaluate:

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.6: Inequalities
Problem 77E
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Please answer 7 and 8 only. Thanks!

SHOW COMPLETE AND CORRECT SOLUTIONS IN ANSWERING THE FOLLOWING
PROBLEMS.
4
1. Given: A = ); B =(, %, Find A - B.
): B= (, : ). Find 2A - 3B.
4
1
2. Given: A =
-2
1 8
14
2 -5
3. Given: A =(3
5
-2
-3
1
Find 3A + 4B - 2C.
%3D
-1
-1
4. Given: A =(; )
and B =(, ). Find BA.
3
2
2
-2
5. Given: A =|
13
B =
1
Find AB.
4
-3
4
6. Given: A =(; ) B =(G Dand C =(, )
) and C =(
Find A(BC).
2
3
-2
-1
7. Evaluate: 2
1
|-2
-2
8. Evaluate:
|-2
-1
4
9. Evaluate: 6
-3
-2
4
1
10. The value of x in
=3 is
For numbers 11-12, use a.) EXPANSION METHOD and b.) PIVOTAL ELEMENT METHOD
1
1
-4
-1
11. Evaluate:
8.
1
-3
6.
1
-3
2
-4
3
-2
-1
-1
12. Evaluate:
3
1
-2
2
2
-4
-1
|-2
1
4
Transcribed Image Text:SHOW COMPLETE AND CORRECT SOLUTIONS IN ANSWERING THE FOLLOWING PROBLEMS. 4 1. Given: A = ); B =(, %, Find A - B. ): B= (, : ). Find 2A - 3B. 4 1 2. Given: A = -2 1 8 14 2 -5 3. Given: A =(3 5 -2 -3 1 Find 3A + 4B - 2C. %3D -1 -1 4. Given: A =(; ) and B =(, ). Find BA. 3 2 2 -2 5. Given: A =| 13 B = 1 Find AB. 4 -3 4 6. Given: A =(; ) B =(G Dand C =(, ) ) and C =( Find A(BC). 2 3 -2 -1 7. Evaluate: 2 1 |-2 -2 8. Evaluate: |-2 -1 4 9. Evaluate: 6 -3 -2 4 1 10. The value of x in =3 is For numbers 11-12, use a.) EXPANSION METHOD and b.) PIVOTAL ELEMENT METHOD 1 1 -4 -1 11. Evaluate: 8. 1 -3 6. 1 -3 2 -4 3 -2 -1 -1 12. Evaluate: 3 1 -2 2 2 -4 -1 |-2 1 4
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