Answer:
10a = 30
Step-by-step explanation:
By using elimination:
4a + 2z = 10
-2(3a + z) = -2(-10)
4a + 2z = 10
6a - 2z = 20
2z and -2z cancel out
10a = 30
a = 3
They are asking for 10a, so 10 (3) = 30.
Answer:
-30
Step-by-step explanation:
Answer:[
−
2
,
∞
)
,
{
x
|
x
≥
−
2
}
Step-by-step explanation:
Answer:
I think it would be 180 degrees
Step-by-step explanation: