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3 years ago

What is ____ divided 12 = 3? What is the answer to the blank?

Mathematics

2 answers:

dalvyx [7]3 years ago

7 0

$x- unknown\\\\\ \frac{x}{12}=3\ \ |*12\\\\x=3*12\\\\x=36\\\\ Unknown\ number\ is\ equal\ to\ 36.$

Ksivusya [100]3 years ago

5 0

$x:12=3\to x=3\times12=36\\\\Answer:\\36:12=3$

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An image of a rectangular prism is shown below: A right rectangular prism is shown. Part A: A cross section of the prism is cut

Murrr4er [49]

Answer:

See below

Step-by-step explanation:

The base is a rectangle hence the parallel cut produces the same shape.

The cut diagonal to base will produce rectangle as the cross section still contains two pairs of parallel lines

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2 years ago

Let x denote the lifetime of a mcchine component with an exponential distribution. The mean time for the component failure is 25

aliina [53]

Answer:

0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

The mean time for the component failure is 2500 hours.

This means that $m = \frac{2500}, \mu = \frac{1}{2500} = 0.0004$

What is the probability that the lifetime exceeds the mean time by more than 1 standard deviations?

The standard deviation of the exponential distribution is the same as the mean, so this is P(X > 5000).

$P(X > x) = e^{-0.0004*5000} = 0.1353$

0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations

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2 years ago

Determine whether the ratios form a proportion.

-BARSIC- [3]

Answer: Your answer is: A) Yes, Proportional

Step-by-step explanation:

Hope this helped : )

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3 years ago

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Fiesta28 [93]

769 rounded to nearest 100 = 800

359 rounded to nearest 100 = 400

309 rounded to nearest 100 = 300

800 + 400 + 300 = $1,500 estimated total cost

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3 years ago

Hi<br> The greatest glory in living lies not in never falling, but in rising every time we fall

mash [69]

Answer:

Agreed

Step-by-step explanation:

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2 years ago

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