In order to calculate the volume of a cylinder, we can use the following formula:

Where r is the base radius and h is the height.
If the circumference is 8, we have:

Now, calculating the volume, we have:

So the correct option is the second one.
Answer:
LCD(8/
15
, 11/
30
, 3/
5
) = LCM(15, 30, 5) = 2×3×5 = 30
Step-by-step explanation:
Answer: 
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Work Shown:

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Explanation:
The idea is to first get all the y terms to one side. I did this by subtracting 2y from both sides in the third step.
Then factor out y and divide both sides by (8x-2)
Afterward there's the optional steps of simplifying (as shown in the final two steps).
It would be -4, and 9.2 because they sign is saying that x is less than or equal too 11.
Answer:
hard
Step-by-step explanation:
I don't know because I have never learnt these things