Answer:
You might want to put that in a picture, because that makes very little sense.
The vector AB is found by subtracting the coordinates of point B from the coordinates of point A => (8, 3, 4) - (5, 7, - 2)
(8, 3, 4) - (5, 7, - 2) = (3, - 4, 6)
=>
a) a 3 x 1 column =
| 3 |
| -4 |
| 6 |
b) xi + yj + zk
=> 3i - 4j + 6k
3 buses x 42 = 126... So the final bus will carry 155-126=29 students.... Mental Math.
X=8 is the Answer. So the equation would be <span>-8+4(1+5 times 8 )=156 </span>
