SOLUTION: Remember to include units as appropriate and to round answers to the nearest tenth. You can use law of sines/cosines, area, etc. Find <6,-2> * <3,-9>. Are the vectors perpendic

Algebra ->  Triangles -> SOLUTION: Remember to include units as appropriate and to round answers to the nearest tenth. You can use law of sines/cosines, area, etc. Find <6,-2> * <3,-9>. Are the vectors perpendic      Log On


   

Question 870672: Remember to include units as appropriate and to round answers to the nearest tenth.
You can use law of sines/cosines, area, etc.
Find <6,-2> * <3,-9>. Are the vectors perpendicular?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
6%2A3%2B%28-2%29%28-9%29=18%2B18=3
No, they are not else the dot product would have equaled zero.