Answer:
A. 
Step-by-step explanation:
I could not make clarifications of what you are asking, but this is similar to 
I am joyous to assist you anytime.
In order to do this you can <span>factorise it to get
(x+1)^2 + (y-5)^2 = 16 = 4^2
hence centre is (-1,5) and radius is 4
</span>I hope this is what you are looking for
Answer:
x ≤ a → x ∈ (-∞, a]
x < a → x ∈ (-∞, a)
x ≥ a → x ∈ [a, ∞)
x < a → x ∈ (a, ∞)
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Therefore:
x ≥ 7.8 → [7.8, ∞)
x < 7.8 → (-∞, 7.8)
x ≤ 7.8 → (-∞, 7.8]
x > 7.8 → (7.8, ∞)
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Step-by-step explanation:
Answer: 8,000 Liters
Step-by-step explanation:
There are 1,000 liters in 1 cubic meter. So you would just do 8 times 1,000, which is 8,000 liters.