Answer:
The answer is 20
Step-by-step explanation:
(Edge2020)
Answer:
z=-3 so 2y+3(-3)=-8, 2y-9=-8, add 9 to both sides 2y=1 divide both sides by 2, y=1/2, so 3x+4(1/2)+-3=-2, 3x+2-3=-2, 3x-1=-2, add 1 to both sides, 3x=-1, divide both sides by 3, x=-1/3
You probably jsut need to use law of cosines in order to solve for angle A

or
Answer:
1/3
Step-by-step explanation:
Answer : YOU HAVE TO SHOW THE WHOLE PIC PLS SO I CAN HELP U
Step-by-step explanation: