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2 years ago

Find the for an area of a sector with an arc length of 60 in and a radius of 15 inches

1 answer:

8 0

Arc length = radius * central angle (radians)
central angle (radians)= arc length / radius
central angle (radians)= 60 / 15
central angle (radians)= 4 radians

sector area =(central angle / 2) * radius^2
sector area = (4 / 2) * 225
sector area = 450

Source:
http://www.1728.org/radians.htm

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2 years ago

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ratelena [41]

Answer:

$\large\boxed{y=2(x+3)^2-6}$

Step-by-step explanation:

The vertex form of a parabola f(x) = ax² + bx + c:

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We have the equation:

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3 years ago

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Nataly_w [17]

Answer:

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Step-by-step explanation:

Put the numbers in order so it would look like this.

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Gre4nikov [31]

Answer:

$120\ minutes$

Step-by-step explanation:

step 1

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by proportion

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step 2

Khalil’s printer

we know that

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step 3

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2 years ago

A person on the ground looks up at an angle of 28° and sees the top of a tree and the top of a building aligned. The tree is 20

lorasvet [3.4K]

Answer:

21.27 meters.

Step-by-step explanation:

Please find the attachment.

Let H and h represent height of building and tree respectively.

We have been given that a person on the ground looks up at an angle of 28° and sees the top of a tree and the top of a building aligned. The tree is 20 m away from the person and the building is 60 m away from the person.

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