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alexdok [17]
3 years ago
5

1.Which explanation justifies how the area of a sector of a circle is derived?

Mathematics
1 answer:
ohaa [14]3 years ago
5 0
The correct answer is 
<span>2) Calculate the area of the circle. Then, determine the central angle of the sector and divide this angle by 360° to get a fraction. Multiply ​the area of the circle​ by this fraction.
area of the circle is calculated by;
area = </span>πr² , where r- radius of circle
<span>the central angle of a circle is 360</span>°. Area of the circle is calculated for central angle of 360°. 
<span>Sector is when 2 arms/ radii enclose a central angle between them.
area for 360</span>° = πr²
<span>area for 1 </span>°    = area/ 360
<span>area for central angle of sector = area * angle/ 360
the angle of sector is divided by 360 and taken as a fraction .this fraction of the total area of the circle is taken as the area of the sector.

</span>
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3 years ago
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ZanzabumX [31]

Answer:

$3.25

Step-by-step explanation:

Given that:

Mean, λ = 1.4

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Strike between one and 2 minutes = $5

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Probability that next strike occurs within the next minute :

Using poisson :

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P(x < 1) = 0.7534030

Next strike occurs between 1 and 2 minutes :

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P(x < 2) = 1 - e^-(1.4*2) = 1 - e^-2.8

P(x < 2) = 1 - 0.0608100

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P(x < 2) - P(x < 1)

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cause the parabola is horizontal and opens on the right.

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Answer:

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