sofie5686 sofie5686 05-02-2024 Mathematics contestada If the lines x-1/-3=y-2/2k=z-3/2 and x-1/3k=y-5/1=6-z/5 are perpendicular to each other, then the value of k isA. −11/19B. −8/7C. −10/7D. −9/7