Answer:
C.
Step-by-step explanation:
I hope this helps you
1)
x= -2y
2. (-2y)+4y=0
0=0
2)
x+2x= -3
x=-1
y= -2
3)
7x+2x+2=4
9x=2
x=2/9
y=2/9+1
y=11/9
Answer:
x is 75° ........................
Answer:
Step-by-step explanation:
volume = 180 * 9
volume = 1620 in³
