Fill in the blank(s) using elementary row operations to form a row-equivalent matrix.
?
?
?
?
A. ?
B. ?
C. ?
D. 
E. ?
Answer: D
Mathematics
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Sketch the line.-4x + 12y - 20 = 0
A. 
B. 
C. 
D. 
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Determine the symmetries of the curve.r2 = 5 cos 5?
A. x-axis, y-axis, origin B. x-axis only C. Origin only D. y-axis only
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Write an equation of the line.
A. y = 3x - 
B. y = - 
x + 3
C. y = 
x + 3
D. y = - 5x + 3
Mathematics