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liq [111]
3 years ago
10

PLEASE HELP QUICKLY!!

Mathematics
1 answer:
svp [43]3 years ago
3 0

Answer:

3π

Step-by-step explanation:

To find the area of a sector, use this formula: (α/360) × πr²

α & r will be substituted by 120 and 3 respectively.

(120/360) × π(3²)

<em>Step 1: 120/360 is equivalent to 1/3.</em>

1/3 * π(3²)

<em>Step 2: Square 3 to get 9.</em>

1/3 * π(9)

<em>Step 3: Multiply 9 by π to get 9π</em>

1/3 * 9π

<em>Step 4: Multiply 1/3 by 9π</em>

3π

The area of sector DEF in terms of π is 3π.

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Diano4ka-milaya [45]
A)
Let x represent the cost of 1 student, and y the cost of 1 teacher.

B)
In the first group, there's 25 students and 2 teachers. Their total cost is $97.50
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We get the following system of equations:
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C)
25x + 2y = 97.50 (1)
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In equation (1)
25x + 2y = 97.50
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25x = 97.50 - 2y
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In equation (2), let's replace x by its algebraic value
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Hope this helps! :)




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3 years ago
A Tessellation has no________. A) gaps or overlaps B) translations C) repeated figures
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8 0
3 years ago
(20 points)
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Answer:

B

Step-by-step explanation:

Slope is the same(x) therefore they are parallel

3 0
3 years ago
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