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2 years ago

Please help me!! I need to find the point!!!! (x,y)

Mathematics

1 answer:

natali 33 [55]2 years ago

4 0

Answer:

x=2 y=-2

Step-by-step explanation:

you can solve this with the elimination process

-10x+6y=-32

-6x+6y=-24

you can multiply the bottom equation by a -1

-10x+6y=-32

-1(-6x+6y=-24)

making it

-10x+6y=-32

6x-6y=24

this allows you to cancel out 6y because 6y-6y=0

so you are left with

-10x=-32

6x=24

add them

-10x=-32

+6x=24

________

-4x=-8

divide by -4=2

x=2

plug that into the original equation

-10(2)+6y=-32

-6(2)+6y=-24

-20+6y=-32

-12+6y=-24

add them

-20+6y=-32

+-12+6y=-24

_________

-32+6y=-56

add 32

-56+32=-24

y=-24

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

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2) Solution to the problem

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

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

And we can find the following probablity:

$P(Z>3) = 1-P(Z$

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

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Answer:

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Answer:

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