1. Let A = [ [9 -5 8 and B = - 4. Find A + B. А. [3 5] в. [4 4] D. [-9 17] c. [-14 12] 6 = x+5 Зу + 2 2х +3 у-4 2. If C = and D = 2z + 4 w +1 z+1 2w – 3 find w, x, y, and z respectively given that C = D. A. 4, 2, -3, -3 B. 2, 4, -3, -3 C. 4, -3, 2, -3 D. -3, -3, 2, 4 0 - 27 3. Compute the matrix product E F if E = and 1 2 0 F = А. - 7 С. -9 1 -8 - 2] В. 4 D. -4 1 3 4. If G is a 3 x 1 matrix while H is alx 3 matrix then A. GH is 3 x 3, HG is 1 x 1. B. GH is 1 x 1, HG is 3 x 3. C. GH is 3 x 3, HG is undefined. D. GH is undefined, HG is 1 x 1. [1 1 1 5. What is the inverse of I = 2 1 1? |2 2 3 4. 2. 2.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter1: Introduction To Algebra
Section1.4: Translating Words Into Symbols
Problem 6MRE
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1. Let A = [-5 8 and B = 9 -4]. Find A + B.
А. [3 5]
в. [4 4]
c. [-14 12]
D. [-9 17]
x+5 Зу + 2
2х + 3 у-4
and D =
w +1
2. If C =
2z +4
z+1
2w – 3
find w, x, y, and z respectively given that C = D.
А. 4, 2, -3, -3
В. 2, 4, -3, -3
С. 4, -3, 2, -3
D. -3, -3, 2, 4
3. Compute the matrix product E F if
E =
4
and
1
2 0
F =
1 1
[- 2
А.
2
С.
-69
1
21
-8
В.
4
D.
3
4
1
4. If G is a 3 x 1 matrix while H is a 1 x 3 matrix then
A. GH is 3 x 3, HG is 1 x 1.
B. GH is 1 x 1, HG is 3 x 3.
C. GH is 3 x 3, HG is undefined.
D. GH is undefined, HG is 1 x 1.
[1 1 1
5. What is the inverse of I =|2
1
1?
2 2 3
1
1
1
A. I' does not exist.
C. % 1
1
-1
1
В. |— 2
-1
-1
D.
4
-1 -
2 -2 -3
- 2
1
[3 -7
4
6. Compute for the determinant of J = 0
6
9.
-1
А. -81
В. -45
С. -18
D. 18
Transcribed Image Text:1. Let A = [-5 8 and B = 9 -4]. Find A + B. А. [3 5] в. [4 4] c. [-14 12] D. [-9 17] x+5 Зу + 2 2х + 3 у-4 and D = w +1 2. If C = 2z +4 z+1 2w – 3 find w, x, y, and z respectively given that C = D. А. 4, 2, -3, -3 В. 2, 4, -3, -3 С. 4, -3, 2, -3 D. -3, -3, 2, 4 3. Compute the matrix product E F if E = 4 and 1 2 0 F = 1 1 [- 2 А. 2 С. -69 1 21 -8 В. 4 D. 3 4 1 4. If G is a 3 x 1 matrix while H is a 1 x 3 matrix then A. GH is 3 x 3, HG is 1 x 1. B. GH is 1 x 1, HG is 3 x 3. C. GH is 3 x 3, HG is undefined. D. GH is undefined, HG is 1 x 1. [1 1 1 5. What is the inverse of I =|2 1 1? 2 2 3 1 1 1 A. I' does not exist. C. % 1 1 -1 1 В. |— 2 -1 -1 D. 4 -1 - 2 -2 -3 - 2 1 [3 -7 4 6. Compute for the determinant of J = 0 6 9. -1 А. -81 В. -45 С. -18 D. 18
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