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Vikki [24]
3 years ago
15

Please help!!!!!!!!!

Mathematics
2 answers:
zloy xaker [14]3 years ago
6 0
Line point L would be the midpoint of question 3.
Lubov Fominskaja [6]3 years ago
4 0
Question 4: 120°
Question 5: G
Question 1: 3x-2
Question 3: L
Question 2: BC+CD=BD
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Reports on a student’s ACT, SAT, or MCAT usually give the percentile as well as the actual score. The percentile is just the cum
DaniilM [7]

Answer:

The percentile is calculated with the following probability:

P(X

And using the z score we got:

P(X

So then we can conclude that 31 represent approximately the percentile 81 on the distribution given

He scored better than about 80.98 % of all MCAT takers.

Step-by-step explanation:

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".  

Solution to the problem

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

X \sim N(25.3,6.5)  

Where \mu=25.3 and \sigma=6.5

And for this case we have a score of 31

The percentile is calculated with the following probability:

P(X

And using the z score we got:

P(X

So then we can conclude that 31 represent approximately the percentile 81 on the distribution given

He scored better than about 80.98 % of all MCAT takers.

6 0
3 years ago
(x+6)(x+3) = x(x+6)+(x+6)(3)<br> Whats the froof here ?
natulia [17]

Answer:

I'm confused as you are

4 0
3 years ago
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Given that sin? x + cos2x = 1
Pachacha [2.7K]

Answer:

the answer is

\frac{ \sqrt{23} }{5}

cause sin²x= 2/25

so cos²x would be 1-2/25= 23/25

then cos x is what I wrote as the answer

8 0
2 years ago
PLEASE HELP
olya-2409 [2.1K]

Answer:

the amount you will get it will be something $286.572 because first multiple 5000 with 2.6% and then multiple by 10 for ten years

3 0
3 years ago
What is the value of y=4x−2 when x=3? When x=3, y=
bonufazy [111]
The answer to you question is y=10
4 0
3 years ago
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