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musickatia [10]
3 years ago
10

A regular pentagon is shown.

Mathematics
2 answers:
loris [4]3 years ago
5 0

Answer:

C: 12.36 cm

Step-by-step explanation:

11Alexandr11 [23.1K]3 years ago
3 0

Answer:

The measure of radius c is 12.36 cm

C is correct.

Step-by-step explanation:

Given: A regular pentagon is shown in diagram.

As we know the sum of angle of pentagon is 540°

It is a regular pentagon. Therefore, each angle is equal.

OB would be angle bisector of angle B

Thus,

In triangle OBC, ∠C=90°

Hence, The measure of radius c is 12.36 cm

Read more on Brainly.com - brainly.com/question/3553861#readmore

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Westkost [7]

Answer:

I don't know I'm just answering questions because i need points

4 0
2 years ago
A 10-ft vertical post casts a 14-inch shadow at the same time a nearby cell phone tower cast a 119-ft shadow. How tall is the ce
Yakvenalex [24]

Answer:

The cellphone towers height is 1020 ft.

Step-by-step explanation:

This question is solved using proportions, by a rule of three.

A 10-ft post casts a 14-inch shadow.

Each feet has 12 inches, which means that a post with 10 feet will cast a 14/12 = 1.167 ft shadow. How tall is the cell-phone tower with a 119-feet shadow?

10 feet post - 1.167 ft shadow

x feet tower - 119 feet shadow

Applying cross multiplication:

1.167x = 10*119

x = \frac{1190}{1.167}

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3 years ago
Pls help :)<br> What x what x what = 9 2/5
anyanavicka [17]

Answer:

1.5326

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
Of 1414 possible​ books, you plan to take 55 with you on vacation. how many different collections of 55 books can you​ take?
Svetach [21]
Divide 1414 by 55 and you get 25.7 but you can't take .7 collections so the correct answer is 25 collections of 55 books
4 0
4 years ago
A boat in still water is 32 mph. If the boat travels 72 miles upstream in the same time that it takes to travel 120 miles downst
dalvyx [7]
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<span>ddown= 120 miles </span>
<span>v= riverspeed </span>
<span>rup= 32mph - v </span>
<span>rdown= 32mph + v </span>
<span>t both ways= t </span>

<span>d=r*t </span>
<span>d/r=t </span>

<span>t=ddown/rdown </span>
<span>t=dup/rup </span>

<span>dup/rup = ddown/rdown </span>

<span>(72)/(32-v)=(120)/(32+v) </span>
<span>3840-120v=2304+72v </span>
<span>1536=192v </span>
<span>v=8</span>
8 0
3 years ago
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