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3 years ago

8

What is the area of the circle shown below?

1 answer:

Andrew [12]3 years ago

5 0

Answer:

201.06

Step-by-step explanation:

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One half of your CDs are scratched. One fifth will not play properly. You have 40 CDs. How many will not work play properly

kvasek [131]

1/2 of 40= 20

40/5=8

20+8=28

28 of your CDs will not work properly.

I hope this helps!

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Answer:

One answer would be -2.155.

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2 years ago

An amusement park has discovered that the brace that provides stability to the ferris

antiseptic1488 [7]

Answer:

Hence the correct answer is option (A) 4.708.

Step-by-step explanation:

Solution:-

Now, we need to find the angle of the sector by using sector formula,

$A = 28.25 ft^{2} \\r = 12ft.\\\\28.25 = \frac{\theta}{360^{o} } \times \pi \times 12^{2} \\\\\theta=\frac{28.25\times 360}{12 \times12 \times \pi} \\\\\theta =( \frac{70.625}{\\pi} )^{o}$

We now convert the angle to radian

$\theta = \frac{70.625}{\pi} \times \frac{\pi}{180}\\\\\theta = 0.39236 radian$

Now we calculate the length of arc by arc formula

$\theta=\frac{I}{12} \\\\0.39236 =\frac{I}{12}\\\\I = 4.708 feet.$

So, The length of steel that must be replaced is 4.708 ft.

4 0

3 years ago