Philip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his 8 employees. How much does ea
2 answers:
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Answer:
75% of the students at the Moore school are are learning to play a stringed instrument.
Step-by-step explanation:
We are given the following in the question:
Total number of students at Moore school = 360
Number of students learning stringed instrument = 270
We have to find the percentage of the students who are learning to play a stringed instrument.
Percentage =
Thus, 75% of the students at the Moore school are are learning to play a stringed instrument.
Vectors:
i = [1 0 0]
j = [0 1 0]
k = [0 0 1]
i + j = [1 1 0]
i + k = [1 0 1]
We want a vector which is orthogonal to both i + j and i + k, so the escalar procut between our vector "v" and i + j, i + k is equal to 0
Let's say v = [x y z]
v . (i + j) = [x y z] . [1 1 0] = x.1 + y.1 + z.0 = 0 => x + y = 0
v . (i + k) = [x y z] . [1 0 1] = x.1 + y.0 + z.1 = 0 => x + z = 0
So, we can say:
x + y = 0 => x = -y
x + z = 0 => x = -z
If x = -y:
x + z = 0
-y + z = 0
z = y = a and x = -a
We know it's a unit vector, so:
So,
y = z = a = and x = -a =
v = [ ]