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3 years ago

Can someone plzzzzzzzzzzzzzzzzzzzzzzzz help me

Mathematics

1 answer:

Marat540 [252]3 years ago

6 0

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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3 years ago

A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previousl

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Considering the situation described, we have that:

The appropriate null hypotheses is $H_0: \mu = 5.2$ .

The appropriate alternative hypotheses is $H_1: \mu < 5.2$ .

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it is tested if the mean has not been reduced, that is, it still is of 5.2 hours, hence:

$H_0: \mu = 5.2$ .

At the alternative hypothesis, it is tested if the mean has been reduced, that is, it is now of less than 5.2 hours, hence:

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More can be learned about hypotheses tests at brainly.com/question/26454209

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