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bulgar [2K]
3 years ago
14

Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations).

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0
A full circle has a measure of 360 degree. the graph shows a 3/4 circle.
3/4 of π*6²=27π
27π is the answer.
bagirrra123 [75]3 years ago
5 0

Answer:

27\pi \ cm^{2}

Step-by-step explanation:

we know that

The area of a circle is equal to

A=\pi r^{2}

we have

r=6\ cm

substitute

A=\pi (6)^{2}=36 \pi\ cm^{2}

Remember that a central angle of 360\° subtends for the area of a complete circle

so

by proportion

Find the area of the circle for a central angle of 270\°

\frac{36 \pi}{360} \frac{\ cm^{2}}{degrees}=\frac{x}{270} \frac{\ cm^{2}}{degrees} \\ \\ x=270*36\pi /360\\ \\x=27\pi \ cm^{2}

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Although not so common now, consider a phone plan that does not have unlimited texting. Your base plan costs you $30 a month and
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Answer:

The bill will be $26070.

Step-by-step explanation:

Your base plan costs you $30 a month

And each text sent or received is only 12 cents or $0.12.

Let the messages sent be = x

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Let total bill cost be = y

Now, total bill will comprise of monthly plan charges plus message charges.

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So, their approximate bill will be :

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=>y=30+26040

=> y = 26070

Therefore, bill will be $26070.

5 0
3 years ago
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Lapatulllka [165]
To get the answer you have to divide the sale price $172.80 by 73%.
So first you turn 73% into a decimal by moving the decimal two places to the left turning it into .73 

$172.80 divided by .73 = $236.71

You can check by then multiplying $236.71 with .73 
7 0
3 years ago
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