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levacccp [35]
2 years ago
13

HELP DUE IN 10 MINS!

Mathematics
1 answer:
Scilla [17]2 years ago
3 0

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

Area of sector: 27^2\pi\cdot \frac{80}{360}=162\pi

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

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Usimov [2.4K]
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while the digits are the same, their place determines the value
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3 years ago
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(a) c.

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8 0
2 years ago
Identify the factor terms by grouping: 5x3 – 4x2 + 20x – 16
jek_recluse [69]

Answer:

The answer is D

Step-by-step explanation:

All you have to do is distribute.

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7 0
3 years ago
Please help me with the 3rd question!!! I'll give you 91 points now, please.
saw5 [17]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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Sidana [21]

Answer:

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Step-by-step explanation:

The largest square must be the first in the polynomial. Because 10-n, 5n+3n^3-1, and n+4n^2-7n^3  do not follow that rule, the answer must be none of the above.

8 0
3 years ago
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