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Vikentia [17]
3 years ago
7

HELP PLEASE?!

Mathematics
1 answer:
ollegr [7]3 years ago
5 0

Answer:

8

Step-by-step explanation:

When we use the scale factor

The lengths increase by the scale factor

the area increases by the scale factor squared

The volume increases by the scale factor cubed

The scale factor is 2

We want the volume

2^3 = 8

The volume is increased by a factor of 8

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Answer:

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HELP DUE IN 10 MINS!
Scilla [17]

Answer:

\checkmark \text{B. The area of the circle is } 729\pi,\\\checkmark \text{D. The arc length of the sector is } 12\pi

Step-by-step explanation:

Area of a circle with radius r: r^2\pi

Circumference of a sector with radius r: 2r\pi

Area of sector with angle \theta:  r^2\pi\cdot \frac{\theta}{360}.

Arc length of sector with angle \theta: 2r\pi\cdot \frac{\theta}{360}

Using these equations, we get the following information:

Area of circle: 27^2\pi=729\pi

Circumference of a circle: 2\cdot 27\cdot \pi=54\pi

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Arc length of sector: 2\cdot 27\cdot \pi \cdot \frac{80}{360}=12\pi

3 0
2 years ago
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