There are two planes: x+4y-3z+12=0 and 2x+8y-6z+4=0 a) Explain how I know these planes are parallel and distanced? b) How far apart are these lines?

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A: n/6 = 5

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Q: 11) b. 30 8.

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A: Just I have used the definition of Vertical angle and then using it solved for x. x=18°

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