Answer:
x=-6
Step-by-step explanation:
2x=-4-8
2x=-12
2x/2=-12/2
x=-6
Answer:
18
Step-by-step explanation:
pls mark brainliest
idk if this is a joke
Answer:
The answer is A
Step-by-step explanation:
A[n] = (a[n-1] +a[n+1])/2 = (3.9 +7.1)/2 = 11/2 = 5.5