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Schach [20]
2 years ago
12

Calculate the length of circumference in a circle with a radius of 5cm. calcuate it using pie= 3

Mathematics
1 answer:
Kay [80]2 years ago
5 0
Circumference = 2xpi x r
                   =2 x 3 x 5
                   =6 x 5
                   =30
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Azul spun a tri-color spinner twice. What is the probability that the spinner landed on the colors blue and green in any order?
guapka [62]

Answer:

The Probability that the spinner landed on the colors blue and green in any order = 2/9

Step-by-step explanation:

Given - Azul spun a tri-color spinner twice.

To find - What is the probability that the spinner landed on the colors blue and green in any order?

Solution -

Given that,

A tri-color spinner spun twice

So,

The Sample Space, S = {BB, BG, BY, GB, GG, GY, YB, YG, YY}

⇒n(S) = 9

Now,

Let A be an event that the spinner landed on the colors blue and green

So,

A = {BG, GB}

⇒n(A) = 2

Now,

Probability that the spinner landed on the colors blue and green in any order = n(A) ÷ n(S)

         = 2 ÷ 9

∴ we get

The Probability that the spinner landed on the colors blue and green in any order = 2/9

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3 years ago
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Answer:

The answer is definition.

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3 years ago
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Step2247 [10]

Answer:

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Step-by-step explanation:

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The following equation describes a circle.
Simora [160]

Answer:

Center = (5, -2)  and radius = √33

Step-by-step explanation:

The equation of a circle is given by the formula;

(x-a)² + (y-b)² = r² ; where (a,b) is the center of the circle and r is the radius of the circle.

In this case;

2x² - 20x + 2y² + 8y =40 ;

Dividing both sides of the equation by 2 we get;

x² - 10x + y² + 4y = 20

we can then use the completing the square on both x and y terms.

x² - 10x + y² + 4y = 20

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In standard form we get;

(x-5)² + (y+2)² = 33

Therefore;

Center = (5, -2)  and radius = √33

3 0
2 years ago
The radius of the sphere is 33 find the surface area
patriot [66]

Answer:

A=13684.7776

Step-by-step explanation:

= 4\pi {r}^{2}

4\pi {33 }^{2}  = 13684.7776

5 0
2 years ago
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