08-02-2017
Mathematics

contestada

PLEASE HELP
Which lines are perpendicular to 7x-3y=18
Choose all answers that are correct

A. 3x+7y=42
B. 3y=7x-15
C. 3x-7y=21
D. -7y=3x+1

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person30 person30

08-02-2017

the answer to this question is B

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