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3 years ago

HELP ASAP will give brainlist

Mathematics

1 answer:

kondor19780726 [428]3 years ago

4 0

You use 360 and then minus other numbers

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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: $2\cdot 27\cdot \pi=54\pi$

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

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

3 0

2 years ago

Explain how bias in the survey might have affected the results. A survey asks teens, “Do you, like most teenagers, dislike liste

Mamont248 [21]

B the phrasing of the question suggest a bias against classical music

that is the answer because they are assuming that no teens like classic music, which is just an opinion, which is bias :)

8 0

3 years ago

Marco has baked and frosted 4 dozen heart-shaped sugar cookies to bring to his class party. He wants to

Sedbober [7]

Answer:

Step-by-step explanation:

4 x 12=48 48 divided by 3=16

4 0

2 years ago

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

bet

7 0

3 years ago

Read 2 more answers

0.00000000213 in scientific notation

Pachacha [2.7K]

Hello!
2.13 x 10^−9
You want to make sure the number(after you move the decimal places) should be in between 1-10.
2.13 is in between 1-10.
I hope this helps;)

4 0

3 years ago