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Novosadov [1.4K]
3 years ago
15

Please help meee!!! 11 points

Mathematics
1 answer:
Ludmilka [50]3 years ago
7 0
Answer: The third answer Y = 2X + 3
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Can someone plzzzzzzzzzzzzzzzzzzzzzzzz help me
Marat540 [252]

9514 1404 393

Answer:

  C.  168°

Step-by-step explanation:

The exterior angle at any vertex of an n-gon will be ...

  360°/n

So a 30-gon will have exterior angles of ...

  360°/30 = 12°

The adjacent interior angle is supplementary to this, so is ...

  180° -12° = 168°

_____

<em>Using the reasonableness test</em>

You know that the interior angles of a square are 90°, and that regular polygons with more sides have larger interior angles. The most any regular polygon's interior angle can be is 180°. The only answer choice between 90° and 180° is the correct choice: 168°.

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2 years ago
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zysi [14]
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3 years ago
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guapka [62]

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7

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3 years ago
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If two similar cones have volumes of 320cm^3 and 1,080cm^3, find the scale factor.
Alexeev081 [22]
The ratio of the volumes is equal to the scale factor cubed.

\frac{V_1}{V_2}=k^3 \\ \\&#10;\frac{320 \ cm^3}{1080 \ cm^3}=k^3 \\&#10;\frac{8}{27}=k^3 \\&#10;k=\sqrt[3]{\frac{8}{27}} \\&#10;\boxed{k=\frac{2}{3}} \Leftarrow \hbox{answer B}
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3 years ago
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