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krok68 [10]
4 years ago
9

Find the exact circumference of a circle with the given radius.

Mathematics
2 answers:
garik1379 [7]4 years ago
4 0

Answer:

Hello!

To find the circumference of a circle you use the equation

C = 2 \pi rC=2πr

C is circumference

r is radius

Put in the values we know

C = 2 *\pi *3 \frac{1}{4}C=2∗π∗341

Multiply the 2 and the 3 1/4

C = 6.5 \piC=6.5π

The answer is C = 6.5

Mila [183]4 years ago
3 0

Answer:

6.5\pi in (B)

Step-by-step explanation:

The circumference of a circle is the length of its perimeter, and it is given by the equation

p=2\pi r

where

r is the radius of the circle

In this problem, the radius of the circle is

r=3\frac{1}{4}in

Which is equivalent to

r=\frac{3\cdot 4 +1}{4}=\frac{13}{4}=3.25 in

Therefore, substituting into the equation, we find the circumference of the circle:

p=2\pi r=2\pi (3.25)=6.5\pi in

So, option B.

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By applying section formula we got that y-coordinate of the point that divides the directed line segment from J to K into a ratio of 5:1 is \frac{5y_2+y_1}{6}

<h3>What is section formula ?</h3>

Let point P(x,y) cuts line joining point  A(x_1,y_1) and B(x_2,y_2)  in m_1:m_2 then coordinate of point P is equal to (\frac{m_1x_2+m_2x_1}{m_1+m_2}, \frac{m_1y_2+m_2y_1}{m_1+m_2})

Here given that point divides line segment from J to K into a ratio 5:1

So

m_1=5\\\\m_2=1

Now we have to fin y coordinate of point that divides the directed line segment from J to K into a ratio of 5:1

We can calculated y coordinate by applying section formula as :

\frac{5y_2+1y_1}{5+1}\\\\\frac{5y_2+y_1}{6}

By applying section formula we got that y-coordinate of the point that divides the directed line segment from J to K into a ratio of 5:1 is \frac{5y_2+y_1}{6}

To learn more about   section formula visit:brainly.com/question/26433769

4 0
3 years ago
Which is the simplified form of m-8pº?
Rashid [163]

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3 years ago
(-11, -17), (2, -12)
Setler79 [48]

Answer: 280

Step-by-step explanation:

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3 0
3 years ago
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Answer:

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a)

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b)

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Initially the person weighed 180 pounds, now after the program, he lost 20 pounds, so his weight will be:

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6 0
3 years ago
I will upvote and give brainliest answer
sesenic [268]

Answer:

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