<span>Jasmine has 30, bill has 64
</span>
Answer:
b = 6 or b = -6 (non-zero vectors)
b = 0 (zero vector)
Step-by-step explanation:
Two vectors
and
are orthogonal if their dot product is equal to 0, or in other words

In your case,

Hence, if vectors a and b are orthogonal, then

Note, then if b = 0, then
and zero-vector is orthogonal to any other vectors.
Thus, b = 6 or b = -6.
C... you are flipping it top and bottom, so only the x coordinate will change to its opposite
4) 41% of 78 is what?
Answer = 31.98
Work:
x = 41/100 x 78
x = 3198/100
x = 31.98
6) 58% of what is 63.4?
The number is = 109.31
Explanation:
Let the number be = x
58/100 (x) = 63.4
x = 63.4 x (100/58)
x = 6340/58
x = 109.31