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Wittaler [7]
3 years ago
10

x = 5 y = -3 What is the solution to the system of equations? A) (0, 0) B) (5, -3) C) (-5, 3) D) (-3, 5)

Mathematics
1 answer:
Rufina [12.5K]3 years ago
5 0

I think its B because, the formation would be (x,y) so that means (5,-3)

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For a given IQ test, an individual is considered a genius if their score falls more than three standard deviations from the mean
ki77a [65]

Answer:

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

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a.2

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".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

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:

X \sim N(\mu=?,\sigma=?)  

We are interested on this probability

P(X>X+3\mu)

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}

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

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a/2.0

3 0
3 years ago
Write two ratios that are equivalent to 3/11
julsineya [31]
The answer is 3:11 and 3 to 11
5 0
3 years ago
PLZ ANSWER IF U KNOW THE ANSWER​
creativ13 [48]

Answer: its b

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
HELP PLEASE.<br> ALGEBRA.
serg [7]
the answer is a because the +2 is the why intercept.
6 0
3 years ago
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What is the standard form of the function F? f(x)=4(x+6)^2+5
pashok25 [27]

Answer:

f(x) = 4x^2+24x+149

Step-by-step explanation:

Expand the binomial and collect terms.

3 0
3 years ago
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