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2 years ago

Can someone plzzzzzzzzzzzzzzzzzzzzzzzz help me

Mathematics

1 answer:

Marat540 [252]2 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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Answer:#1

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3 years ago

Read 2 more answers

A company wants to establish that the mean life of its batteries, when used in a wireless mouse, is over 183 days. The data will

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Answer:

a) Null and alternative hypotheses are:

$H_{0}$ : mu=183 days

$H_{a}$ : mu>183 days

b) If the true mean is 190 days, Type II error can be made.

Step-by-step explanation:

Let mu be the mean life of the batteries of the company when it is used in a wireless mouse

Null and alternative hypotheses are:

$H_{0}$ : mu=183 days

$H_{a}$ : mu>183 days

Type II error happens if we fail to reject the null hypothesis, when actually the alternative hypothesis is true.

That is if we conclude that mean life of the batteries of the company when it is used in a wireless mouse is at most 183 days, but actually mean life is 190 hours, we make a Type II error.

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3 years ago

A triangle has one side which 2 meters long and another side which is 5 meters long write a value that could be the length of th

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Answer:

The measure of the third side should be less than 2+5 = 7

Length of the third side<7

Hope this helps!

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3 years ago

Miguel's parents earned $39,097 for the year. During the year they paid $8,210 in taxes. At the end of the year when taxes are c

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Answer:$21,662

Step-by-step explanation:

$8,210+ $9,195 -$39,097=$21,662

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3 years ago

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3 years ago