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3 years ago

No need to show work only need answer thx!

Mathematics

1 answer:

Stella [2.4K]3 years ago

5 0

X=-5, X=4 hope this helps

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What is the measure if each interior angle of a 15-gon

olya-2409 [2.1K]

Answer:

The sum of the interior angles of the 15-gon $=\:2340^0$

Each interior angle of the regular polygon $=\:156^0$

Step-by-step explanation:

As we know that

In any convex polygon, if we may start at one vertex and draw the diagonals to all the other vertices, we would form triangles,

The number of triangles thus formed would always 2 LESS than the number of sides.

The sum of measure of the angles of any triangle is 180°.

Thus,

The sum of the interior angles of the 15-gon will be:

$13\:\times\:180\:=\:2340^0$

Also

15-gon is regular, it means this total $2340^0$ is shared in equal proportion among the 15 interior angles.

And

Each interior angle of the regular polygon will be: $\frac{2340^{0} }{15}=156^{0}$

Therefore, we conclude that:

The sum of the interior angles of the 15-gon $=\:2340^0$

Each interior angle of the regular polygon $=\:156^0$

Keywords: regular polygon, 15-gon, triangle

Learn more about polygon from brainly.com/question/11932357

#learnwithBrainly

3 0

3 years ago

Need help presenting this solution on and number line and in interval notation. (I’m absolutely clueless haha)

beks73 [17]

Since the number is a fraction make a number line using fractions. The inequality sign includes being equal to, so add a solid dot on -5/2 and since x is less than that, draw an arrow pointing to the left.

See attached drawing.

For interval notation since x can be any number less than or equal to -5/2 it would be written as (-∞, -5/2]

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3 years ago

Sally's family is going to visit her grandparents for the holidays. They live 585 miles away. Sally's parents plan to drive for

Kobotan [32]

60(h)=number of miles
60h= 255

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2 years ago

In a systematic review with a meta-analysis, researchers combine the results of each of the individual studies to create a large

seropon [69]

Answer: Power Analysis

Step-by-step explanation:

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3 years ago

Summer day camp is about to begin. Today there are 132 boys signed up and 219 total children signed up. How many more boys than

pshichka [43]

219-132 is the equation because the rest of the 219 comes from the girls who signed up. the answer is 77. To find how many more boys than girls signed up you need to subtract 77 from 132. 132-77= 55

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3 years ago

Read 2 more answers