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3 years ago

Identify and define the variable for the situation

Mathematics

1 answer:

Anika [276]3 years ago

3 0

Answer:

A variable is a letter used in a mathematical equations , formula or expression

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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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Marizza181 [45]

Answer:

A) You would move it 2 times B) The Exponent would be 10^2

Step-by-step explanation:

This one's hard to explain..if you want you can message me about it :)

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3 years ago

The daily temperatures in fall and winter months in Virginia have a mean of 62°F. A meteorologist in southwest

marshall27 [118]

Answer:

,, assuming the true mean temperature 62 degrees Fahrenheit there is a 0.1% probability that the null hypothesis is true by chance alone

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3 years ago

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.The Tlingit hunted seals in which culture region?

MrRa [10]

C. Pacific Northwest

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3 years ago

A=1/2w(b+c) solve for c

kaheart [24]

9514 1404 393

Answer:

c = 2A/w -b

Step-by-step explanation:

Multiply by the inverse of the coefficient of the parentheses.

$A=\dfrac{w}{2}(b+c)\\\\\dfrac{2A}{w}=b+c\\\\\boxed{c=\dfrac{2A}{w}-b} \qquad\text{subtract $b$}$

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3 years ago

Identify and define the variable for the situation​

Identify and define the variable for the situation