Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes
B. Yes; no
C. No
Answer: B
Mathematics
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Provide an appropriate response.Solve the inequality: 
x + 
? 
x
A. x ? 6
B. x ? 
C. x ? -
D. x ? 6
Mathematics
Find the x- and y-intercepts from the graph. If there are no intercepts write "No x-intercept" or "No y-intercept".
A. (0, 2), (1, 0) B. (1, 2), (0, 0) C. (0, 0), (2, 1) D. (0, 1), (2, 0)
Mathematics
Simplify.[36 - (4 + 6) ÷ 2] - [1 + 24 ÷ 3]
A. 17 B. 29 C. 19 D. 22
Mathematics
Evaluate the expression.
1/2
A. 
B. 
C. 
D. 
Mathematics