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Anit [1.1K]
3 years ago
6

HELP NEEDED PLEASE!

Mathematics
1 answer:
Setler [38]3 years ago
4 0

Answer:

54

Step-by-step explanation:

\frac{4}{3} \pi r^{3} =12\pi \\r=\sqrt[3]{9} \\surface area 4\pi r^{2} = 4\pi (\sqrt[3]{9} )^2=54.372 (3dp)

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Use the figure to determine the value of X and y
bogdanovich [222]

Answer:

100,80

Step-by-step explanation:

The opposite angle theorem states that, : "When two lines cross four angles are created and the opposite angles are equal."

y°=80°

Now, check that , x° and y° are in one straight line. A straight line has angle of 180°. So x° and y° should sum up to 180°

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6 0
3 years ago
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Blababa [14]

For this case we have that by definition, the circumference of a circle is given by:

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Answer:

Option B

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Step-by-step explanation:

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