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Yuliya22 [10]
3 years ago
10

Assume the random variable X is normally distributed, with mean 45 and standard deviation is 8. Find the 9th percentile

Mathematics
1 answer:
Maksim231197 [3]3 years ago
5 0

Answer:

the 9th percentile, i dont even know the first percentile

Step-by-step explanation:

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a sector with the central angle measure of 4pi/5 (in radians) has a radius of 5 cm. What is the area of the sector? PLS HELP :(
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Answer:

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Step-by-step explanation:

Formula for the area of a sector is,

Area = \frac{\theta}{2\pi }(\pi r^{2} )

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r = radius of the circle

Now substitute the values given in the formula,

Area of the sector = \frac{\frac{4\pi }{5}}{2\pi }\times \pi (5)^2

                              = \frac{4\pi }{10\pi } \times (25\pi)

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                              ≈ 31.42 cm²

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3 years ago
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