Yes it proportional because they all function of y=3x
0x3=0
2x3=6
4x3=12
6x3=18
Answer: 18
Step-by-step explanation:
this is because complementary angles add up to 90 degrees so you would just subtract 72 from 90 to get your answer :)
Answer:
3
Step-by-step explanation:
So we have the function:

To evaluate the value of f(-2), substitute -2 for x. Thus:

Square first:

Multiply:

Now, subtract:

So:

And we're done!
X = # of woodwind instruments
y = # of brass instruments
2x = y
150 = x + y
I hope this helps you!
This is an equilateral triangle because all the angles are the same. This means the sides will be the same as well.
2x + 33 = 9.
Minus both sides by 33.
2x = -24
Then, divide both sides by 2.
x = -12