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alina1380 [7]
2 years ago
7

Plz Help !!!

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
5 0

Answer:

3962.96 is the radius

Step-by-step explanation:

r=C

2π=24900

2·π≈3962.95808

Hope this helps. I'm really sorry. We all struggling out here. We can do it!!

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klasskru [66]

Answer:

choice 2

Step-by-step explanation:

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2 years ago
If the life in years of a television set is normally distributed with a mean of 36 years and a standard deviation of 8 years wha
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Answer:

The company should guarantee a lifetime of less than equal to 20.95 years so that less than 3% of the television sets fail while under warranty.    

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 36 years

Standard Deviation, σ = 8 years

We are given that the distribution of life of television sets is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

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\displaystyle\frac{x - 36}{8} =-1.881\\\\x = 20.952\approx 20.95  

Thus, the company should guarantee a lifetime of less than or equal to 20.95 years so that less than 3% of the television sets fail while under warranty.

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mafiozo [28]
30 miles per hour

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6 0
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Step-by-step explanation:

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