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3 years ago

Paul's car is 14 feet long. He is making a model of his car that is 1/8 the actual size. What is the length of the model?

Mathematics

1 answer:

likoan [24]3 years ago

8 0

Answer:

1 3/4 ft.

Step-by-step explanation:

14 divided by 8 is 1 and 3/4 ft.

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8 less then a number n is -13

Oliga [24]

Answer:

equation: 8-n=13

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Step-by-step explanation:

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2 years ago

Suppose the average tread-life of a certain brand of tire is 42,000 miles and that this mileage follows the exponential probabil

Ahat [919]

Answer: The probability that a randomly selected tire will have a tread-life of less than 65,000 miles is 0.7872 .

Step-by-step explanation:

The cumulative distribution function for exponential distribution is :-

$P(X\leq x)=1-e^{\frac{-x}{\lambda}}$ , where $\lambda$ is the mean of the distribution.

As per given , we have

Average tread-life of a certain brand of tire : $\lambda=\text{42,000 miles }$

Now , the probability that a randomly selected tire will have a tread-life of less than 65,000 miles will be :

$P(X\leq 65000)=1-e^{\frac{-65000}{42000}}\\\\=1-e^{-1.54761}\\\\=1-0.212755853158\\\\=0.787244146842\approx0.7872$

Hence , the probability that a randomly selected tire will have a tread-life of less than 65,000 miles is 0.7872 .

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3 years ago

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2 years ago

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