Multiply the first bracket by -4. Multiply the second bracket by -2
-8x+12y+4x-2x-12
Negative and Negative = Positive
Negative and Positive = Negative
Then do -8x+4x-2x
= -6x+12y-12
Answer is D. -6x+12y-12
Answer:
C.
Step-by-step explanation:
A triangle has a full measure of 180° and a right triangle has a 90° angle so you add 90° (C) plus 48° (A) and then subtract it from 180° and you should get 42° :)
Look up on desmos it will give the correct answer