Use the matrix capabilities of a graphing utility to find AB, if possible.
A. 
B. 
C. 
D. not possible
E. 
Answer: B
Mathematics
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Simplify completely.
A. 
B. 
C. 
D. 
Mathematics
Collect like terms.9a - 4a + 5
A. 10a B. 13a + 5 C. -5a + 5 D. 5a + 5
Mathematics
Use Gaussian elimination and matrices to solve the system of linear equations. Write your final augmented matrix in triangular form and then solve for each variable using back substitution. x + y + z= 5 x - y + 3z=-73x + y + z=11
A. (3, -2, 4) B. (-2, 3, 4) C. (3, 4, -2) D. (-2, 4, 3)
Mathematics
Add. Write a mixed numeral for the answer.16
+ 8
+ 
A. 24
B. 26
C. 25
D. 25
Mathematics