Evaluate the determinant.
A. 4
B. -1
C. 7
D. 1
Answer: D
Mathematics
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Perform the following operation and write the result in lowest terms. 6
+ 6
A. 12
B. 13
C. 12
D. 12
Mathematics
Simplify by combining like terms.9y + 2 - 2y + 7
A. 11y + 9 B. 7y + 9 C. 7y - 5 D. 16y
Mathematics
Use the indicated row operation to change the matrix.Replace R2 by R1 + (-1)R2.
A. 
B. 
C. 
D. 
Mathematics
Round the number to the place indicated.Round to the nearest one: 711.774
A. 711.77 B. 712 C. 711 D. 711.8
Mathematics