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Inessa05 [86]
3 years ago
9

Find the equation of a line with the given points. 7, 3 , 5, -1

Mathematics
1 answer:
MissTica3 years ago
5 0

Answer:

i think if its on a graph

Step-by-step explanation:

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Find the area of the figure<br> A) 450MM<br> B) 67,500 MM<br> C) 600MM<br> D)150MM
Sphinxa [80]
Thats it option (C). Hope it helps!!

5 0
3 years ago
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The number of text messsages that teenagers send per month is normally
ki77a [65]

Answer:

z=\frac{4415-3400}{450}=2.26

And the explanation of this number is:"The number of text messages for Kendra it's 2.26 deviations above the mean"

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) Calculate the z score

Let X the random variable that represent the number of text messages per month, and for this case we know the distribution for X is given by:

X \sim N(3400,450)  

Where \mu=3400 and \sigma=450

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:

z=\frac{4415-3400}{450}=2.26

And the explanation of this number is:"The number of text messages for Kendra it's 2.26 deviations above the mean"

6 0
3 years ago
PLS HELP I WILL GIVE BRAINLIEST PLS ALSO ANSWER CORRECTLY PLS
max2010maxim [7]

Answer: Its D :)

Step-by-step explanation:

4 0
3 years ago
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Which fractions are equivalent to -30/48 ?
Vedmedyk [2.9K]

The answer is D

Because

-35/65 = -0.53


I hope that's help:)

6 0
3 years ago
3 groups of 5 how<br> Many are there in total
Vadim26 [7]

It's 15 because

3 groups and 5 people in each group

and becomes 15

I HOPE THIS HELPS

7 0
3 years ago
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