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2 years ago

Compare 4 and -2. Which of the following is true?

Mathematics

2 answers:

Arisa [49]2 years ago

6 0

I am not 100% sure but I think it’s C sorry if I is wrong

Sonbull [250]2 years ago

5 0

Answer:

stan nct dream pls stream nct 2021 resoonance

Step-by-step explanation:

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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

4 0

2 years ago

a pizza shop offers 30% off the price of a large pizza every Tuesday night. If the regular price is $25, what is the discounted

Elina [12.6K]

You need do like 25$--------100% of real price
x$---------70%

25x70=100x
1,750=100x
 x=1750divided by 100=17.5$

5 0

3 years ago

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Hi can some one please help me !!!

Vsevolod [243]

Answer:

Step-by-step explanation:

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3 years ago

PLEASE HELP ASAP are similar isosceles triangles. What is the ratio of the sides? Using Complete sentences, explain how you coul

gregori [183]

Answer:

If an angle of 1 isosceles triangle is congruent to an angle of another isosceles triangle the triangles are similar. sometimes If the corresponding sides of 2 similar triangles are in a ratio of 3:4 then the there perimeters are in a ratio of 3:4. brainlist

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3 years ago

Missing letter H, I,I, K, J,M, _,O,L,W

krok68 [10]

F and U and C and K and then finally U

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3 years ago