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Sveta_85 [38]
4 years ago
14

The wrestling team needs to calculate the area of a round wrestling mat. Which formula should they use? A) L x W B) L x W x H C)

2πr D) πr2
Mathematics
2 answers:
fredd [130]4 years ago
8 0

Answer:

Option D is correct

\pi r^2

Step-by-step explanation:

Area of a circle is given by:

A = \pi r^2

where,

A is the area of the circle

r is the radius of the circle

As per the statement:

The wrestling team needs to calculate the area of a round wrestling mat

Since, wrestling mat is in the shape of the circle.

Using the area of circle formula we have;

\text{Area of a round wrestling mat} = \pi r^2

Therefore, the formula should they use is, \pi r^2

Likurg_2 [28]4 years ago
5 0

Answer: D

Explanation: To find the area of a square you square the radius and multiply it by pi or 3.14

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Evgesh-ka [11]
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Answer is b
4 0
3 years ago
Can anyone help me? <br><br> a^2 -2a+2a-4-a^2+2a+3a+6=3a+9
Alinara [238K]

Answer:

a=7/2

Step-by-step explanation:

a^2-2a+2a-4-a^2+2a+3a+6=3a+9

You want to solve for "a"

1. Mover all terms on the right side to the left side setting this equation to zero.

2. Combine Like Terms

3. Divide to isolate your "a"

6 0
3 years ago
Read 2 more answers
Pls help i will mark brainlyest
Sergeeva-Olga [200]

Answer:

∠b=82°

Step-by-step explanation:

143°=∠c+∠b (exterior angle property)

143°=61°+∠b

∠b=143-61

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4 0
2 years ago
How do you solve this system of equation?<br> 2x+4y=-4<br> 3x + 5y =-3
Annette [7]

Answer:

x = 4

y = -3

Step-by-step explanation:

We can use substitution, elimination, or graphically.

Step 1: Rearrange first equation

2x + 4y = -4

2x = -4 - 4y

x = -2 - 2y

Step 2: Rewrite systems of equations

x = -2 - 2y

3x + 5y = -3

Step 3: Substitution

3(-2 - 2y) + 5y = -3

-6 - 6y + 5y = -3

-6 - y = -3

-y = 3

y = -3

Step 4: Find <em>x</em> using <em>y</em>

2x + 4(-3) = -4

2x - 12 = -4

2x = 8

x = 4

Graphically:

Use a graphing calc and analyze where the 2 lines intersect.

5 0
4 years ago
What is the ​ IQR ​ for the data set? {31, 30, 40, 35, 48, 44, 25} Drag and drop the correct answer into the box.
Kitty [74]

Answer:

B

Step-by-step explanation:

IQR is the higher qurtile subtracted by the lower qurtile so higher is 40 and lower is 20 so 14

Hope this helps have a great day:)

4 0
2 years ago
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