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: C
Mathematics
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Simplify the difference.(10x + 3) - (3x - 6)
A. 13x - 9 B. 7x - 9 C. 7x + 9 D. 13x + 9
Mathematics
Provide an appropriate response.A student added two mixed numbers in the following way: 5
+ 3
= 8
Explain in your own words what is wrong with the answer and give the correct answer.
What will be an ideal response?
Mathematics
Convert to radical notation and simplify.642/3
A. 8
B. 
C. 16
D. 4
Mathematics
Graph.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics