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ella [17]
3 years ago
15

Find the volume of the sphere of 2.5. Enter the EXACT answer you see on your calculator. NO ROUNDING this time.

Mathematics
1 answer:
Sergio039 [100]3 years ago
7 0
2.5 what just use the formula pi•(4/3r•r)
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A circle with radius of 2cm sits inside a circle with radius of 4cm What is the area of the shaded region
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12\pi \:  {cm}^{2}

EXPLANATION

We want to find the area of the shaded region.

We find the area of the smaller circle and subtract from the area of the larger circle.

Area of smaller circle is

a = \pi \: \times   2^{2}  = 4\pi

Area of larger circle is

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The area of the shaded region is:

16\pi - 4\pi = 12\pi

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Answer:

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Then Esther's preference will he right. (thinking about time value of money).

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