Answer:
the first one
Step-by-step explanation:
2x-y=12
-y=12-2x
(-y=12-2x)devide -1
y = -12+2x
y=2x-12
ANSWER = C
Answer:

Step-by-step explanation:
First off, your drawing is kinda inaccurate, because the
looks like a right angle, but as you drew it yourself it doesn't matter too much.
We know that the sum of the angles of a triangle will always equal
, so we have that
.
Combining like terms on the left side gives
.
Subtracting
from both sides gives
.
So,
and we're done!
Answer:
no because the x value -2 has two corasponding y values
Step-by-step explanation:
Answer:
you have to detect the angles on itmeasure the angles on the empty side wheree there are no numbers based on what the other side is
Step-by-step explanation: