a-- and b-- have the opposite directions. a-- has a magnitude of 7, and b-- has a magnitude of 6. What must be true about a-- and b--?

Question

a--> and b--> have the opposite directions. a--> has a magnitude of 7, and b--> has a magnitude of 6. What must be true about a--> and b-->?

anonymous · Answer

Possible answers: They are equal, but not parallel.
		They are opposites and parallel.
		They are parallel, but not opposites.
		They are equal and parallel.

hartnn · Answer

|dw:1360640732516:dw|
opposite dir. means they are opposites. 
Two vectors are Equal, if they have SAME magnitude.
so here are they equal ?

anonymous · Answer

No they aren't equal

hartnn · Answer

correct :) 
so what answer choice you'll select ?

anonymous · Answer

They are opposites and parallel?

hartnn · Answer

$\huge \checkmark $

anonymous · Answer

thank you c: I was thinking that just wasn't sure

hartnn · Answer

welcome ^_^
so, @you-me-at-six , i'll pick you up at 5.30 ? ;) :P

hartnn · Answer

just kidding :)

anonymous · Answer

haha cx

anonymous · Answer

@hartnn  what is the code for checks and all those crazy things lol

whpalmer4 · Answer

@hartnn don't you go messing around with my $2T\pi$! :-)

hartnn · Answer

oh, checkmark 
` $$ \checkmark $$`
will give you 
$$ \checkmark $$

hartnn · Answer

and `$$\huge  \checkmark $$`
will give you
$$\huge  \checkmark $$

hartnn · Answer

you can also insert color . 
$$\color {red} {\checkmark} $$

hartnn · Answer

`$$\color {red} {\checkmark}$$`