Determine if the matrix is in row-echelon form.
A. No
B. Yes
Answer: A
Mathematics
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?Which if the following letters or figures is not the same when reflected about a vertical line?
A.
?A
B.
K
C.
?
D.
V
E.
?None of the above.
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Add or subtract the rational expressions. Reduce to simplest terms.
+ 
A. 2
B. 
C. 
D. 
Mathematics
Indicate whether the statement is true always, sometimes, or never.The difference between two real numbers is a real number.
A. Always B. Sometimes C. Never
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Find the slope and the y-intercept of the line with the given equation.f(x) = - 5x - 7
A. - 5; 
B. - 7; 
C. 5; 
D. - 
; 
Mathematics