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Ulleksa [173]
3 years ago
9

You are working on an air conditioning system. A roll of cylindrical copper tubing has an outside diameter of 7/8 inch and an in

side diameter of 3/4 inch. How much refrigerant can 12 feet of the tubing hold?
Mathematics
2 answers:
maksim [4K]3 years ago
8 0

Answer:

20.25\pi\ in^{3}  or 63.585\ in^{3}

Step-by-step explanation:

Find the volume of the inside of cylindrical copper tubing

The volume is equal to

V=\pi r^{2} L

we have

r=(3/4)/2=3/8\ in ----> the radius is half the diameter

Remember that

1\ ft=12\ in

so

12\ ft=12*12=144\ in

L=144\ in

substitute the values and find the volume

V=\pi (3/8)^{2}(144)

V=20.25\pi\ in^{3} -----> exact value

assume

\pi=3.14

V=20.25(3.14)=63.585\ in^{3} -----> approximate value

White raven [17]3 years ago
8 0

Answer: A

Step-by-step explanation:

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Thanks for the help :)
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Your welcome I’m glad to help out
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