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.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

yes. we do proportions in probabilities.