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s2008m [1.1K]
2 years ago
7

Can someone plz help me with this one problem

Mathematics
1 answer:
galina1969 [7]2 years ago
5 0
The awswer should be 18? If it’s adding to find.
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The diameter of a circle is 3 kilometers. What is the area?
lora16 [44]

Answer:

7.068583471 km ^2

Step-by-step explanation:

pi x radius² is area

pi x 1.5² = the answer

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3 years ago
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Find the average of: 15, 8, -22, 24, -9, -18, 16
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The average is 2. To find the average you add all the numbers then divide the sum by the total amount of numbers.
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Choose the ordered pair that is a solution to the system of equations. 3x - y = 9 2x + y = 6
Inessa [10]
The answer is (3,1), hope that helps
7 0
3 years ago
3
Dafna11 [192]

The approximate length of rail that needs to be replaced is 7.1 ft

<h3>Length of arc</h3>

Since the pool is circular, the approximate length that needs to be replaced is an arc of length, L = Ф/360° × πD where

  • Ф = central angle of rail section = 27° and
  • D = diameter of circular pool = 30 ft

<h3>Approximate length of rail</h3>

So, substituting the values of the variables into the equation, we have

L = Ф/360° × πD

L = 27°/360° × π × 30 ft

L = 3/40 × π × 30 ft

L = 3/4 × π × 3 ft

L = 9/4 × π  ft

L = 2.25 × π  ft

L = 7.07 ft

L ≅ 7.1 ft

So, the approximate length of rail that needs to be replaced is 7.1 ft

Learn more about length of an arc here:

brainly.com/question/8402454

5 0
2 years ago
What is10 + 9 <br><br> i really dont know <br><br> can someone help me
Tresset [83]

\huge \green{ \boxed{ANSWER}}

10  \:  +  \: 9 \:  =  {\boxed{19}}

USE CALCULATOR -_-

\mathfrak{JazmineChoi}

<em><u>STAN </u></em><em><u>TREASURE</u></em>

8 0
2 years ago
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