I really need help with these questions.. Even if you can only answer one anything helps! Will give points and mark for smartest
1. Evaluate the determinant for the following matrix:
Below is all in one Bracket
-4 -4 -3
3 3 -5
-5 2 -5
Answer Choices
A. –152
B. –203
C. 75
D. –263
2.
Complete the multiplication: AB.
All sets of numbers are within a bracket.
A = 3 0 B= 2 8
2 -1 6 3
A. 6 0
1.2 -3
B. 6 24
3.4 5
C. 22 -8
7.8 -3
D. 6 24
3.4 13
3. Is in the 1st Picture
4.Use Gauss-Jordan elimination to solve the following linear system:
–3x + 4y = –6
5x – y = 10
A. (–6,2)
B. (2,–5)
C. (2,2)
D. (2,0)
5. If you were to use Gauss-Jordan elimination on the following linear system, what would the augmented matrix be? [ you can refer to second picture for 4 multiple choice answers ]
3w − x = 2y + z − 4
9x − y + z = 10
4w + 3y − z = 7
12x + 17 = 2y − z + 6
6. Refer to 3rd photo