Find a vector 3 units long in the opposite direction from v = 〈3, 1,-4).

Unit vector along the direction v = <3,1,-4> is :

So, unit vector opposing the is :

so, vector of magnitude 3 units in opposite direction from v is :

Hence, this is the required solution.

35-60 students are taking math.

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.