Which equation represents a line which is parallel to the line 7x - y = 4? O Y = 73 – 5
O y = x + 6
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Oy=-x+8
y = -7x + 1
Please help!!

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

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