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3 years ago

Formula of circumference

Mathematics

2 answers:

Korvikt [17]3 years ago

6 0

Answer:

cimcumference = 2 × π × radius of circle ( 2πr)

Olin [163]3 years ago

6 0

Answer:

circumference = 2πr

hope it helps

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Solve for x.

o-na [289]

2x+5=27

subtract 5 from both sides:
2x=22

divide by 2 on both sides:
x=11

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3 years ago

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HELP PLEASE! Write and solve the equation: The squares are identical. What is the area of each square?

Zarrin [17]

If a=4:

HOW TO FIND THE AREA

<h2>A=4a (formula)</h2>

A=4*4

A=16

If it's 100:

A=4*100

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3 years ago

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Bruce is going to call one person from his contacts at random. He has 25 total contacts. 20 of those contacts are from his neigh

Naya [18.7K]

<h3>P(call a person not from his neighborhood) = $(\frac{1}{5} )$ </h3>

Step-by-step explanation:

Here, the total number of contacts in the list if Bruce = 25 contacts

The total number of neighbors in the contact = 20 people

Now, let E: Event of calling a person from his neighborhood

So, P(E) = $\frac{\textrm{Total Favorable Outcomes}}{\textrm{Total Outcomes}} = \frac{20}{25} = (\frac{4}{5})$

So, the probability of calling a person from his neighborhood is $(\frac{4}{5} )$

⇒P(E) = $(\frac{4}{5} )$

Now,as we know: P(E) + P(not E) = 1

So, the probability of NOT calling a person from neighborhood

= 1 - probability of calling a person from his neighborhood

$= 1 - (\frac{4}{5}) = \frac{5-4}{5} = (\frac{1}{5})$

⇒P( not E) = $(\frac{1}{5} )$

Hence, P(call a person not from his neighborhood) = $(\frac{1}{5} )$

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3 years ago

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The perimeter of a rhombus is 84 inches. What is the length of each side of the rhombus? Explain

dmitriy555 [2]

Answer:

Each side of the rhombus is 21 inches

Step-by-step explanation:

A rhombus has 4 equal sides: So all sides are the same

So you take the total perimeter and divide it by 4

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4 years ago

Help on blue question. 15 points if answered right

tino4ka555 [31]

32=-16t +16t^2

Divide each term by 16

2=-1t+t^2

t^2-t-2=0

0=(t-2 )(t+1)

T=2 or -1

Answer is 2 seconds

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3 years ago

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Formula of circumference​

Formula of circumference