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AnnyKZ [126]
2 years ago
5

In this circle, the area of sector COD is 50.24 square units. The radius of the circle is units , and units.

Mathematics
1 answer:
maks197457 [2]2 years ago
7 0

Let angle be alpha

\\ \rm\Rrightarrow Area=50.24

\\ \rm\Rrightarrow \dfrac{\alpha}{360}\pi r^2=50.24

\\ \rm\Rrightarrow \alpha 3.14r^2=18086.4

\\ \rm\Rrightarrow \alpha r^2=5760

\\ \rm\Rrightarrow r^2=\dfrac{5760}{\alpha}

\\ \rm\Rrightarrow r=\sqrt{\dfrac{5760}{\alpha}}

If you have angle measure in degree put in place of Alpha and get the value elaw this is our final answer

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Answer:

C. m ≥ 9

Step-by-step explanation:

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2 years ago
The area of the conference table in Mr. Nathan’s office must be no more than 175 ft2. If the length of the table is 18 ft more t
valentina_108 [34]
The answer is  0 < x <span>≤ 7 
</span>
First, we know that width =  x
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So, the possible equation for the Table's area is

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X^2 + 18x - 175  <span>≤ </span>0

Next, we need to calculate is by using complete square method
x^2 + 18x + 81 <span>≤ 175 + 81

(x + 9)^2 </span><span>≤ 256

|x + 9| </span><span>≤ sqrt(256)

|x + 9| </span><span>≤ +-16

-16 </span>≤ x + 9 <span>≤ 16

</span>-16 - 9 ≤ x <span>≤ 16 - 9

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Since the width couldn't be negative, we can change -25 with 0,

so it become
</span> 0 < x ≤ 7 
7 0
3 years ago
What does f(3) means ?
Butoxors [25]

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then  

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anytime you see F(3) it is just whatever formula you are looking at evaluated when the variable is equal to 3.

5 0
3 years ago
Suppose you receive a $50 gift certificate to the citywide music and books store. All CDs at the store cost $9.99 and all books
Zanzabum
Whats the question I don't get it
7 0
3 years ago
Increased by 130% is 69 ?
Setler [38]

Answer:

<h2>89.7</h2>

Step-by-step explanation:

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<h2>I'm always happy to help :)</h2>
3 0
3 years ago
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