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Fed [463]
4 years ago
10

How do you find how many solutions a system of equations has?

Mathematics
1 answer:
klasskru [66]4 years ago
4 0
If the lines are the same, the equations are dependent linear equations.


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Assume that military aircraft use ejection seats designed for men weighing between 141.8 lb and 218 lb. If​ women's weights are
Mariulka [41]

Answer:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

Step-by-step explanation:

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(173.6,49.8)  

Where \mu=173.6 and \sigma=49.8

We are interested on this probability

P(141.8

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(141.8

And we can find this probability with this difference and using the normal standard table:

P(-0.639

Then the answer would be approximately 55.3% of women between the specifications. And that represent more than the half of women

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Bumek [7]

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Step-by-step explanation:

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liberstina [14]

Answer:

-686

Step-by-step explanation:

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Step-by-step explanation:

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mel-nik [20]

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