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Novay_Z [31]
3 years ago
15

Can someone help me with this pls. I’ll give brainliest

Mathematics
1 answer:
nasty-shy [4]3 years ago
3 0

Answer:

26

Step-by-step explanation:

a triangle is 180 degrees add 120 + 34 to get 154

180 -154 = 26

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A drive way is 40 yards long. About how many meters lobg is it
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About 36.6 metres long
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3 years ago
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The distribution of the scores on a certain exam is ​N(40​,5​), which means that the exam scores are Normally distributed with a
katen-ka-za [31]

Answer:

Step-by-step explanation:

Let x represent the random variable representing the scores in the exam. Given that the scores are normally distributed with a mean of 40 and a standard deviation of 5, the diagram representing the curve and​ the position of the​ mean, the mean plus or minus one standard​ deviation, the mean plus or minus two standard​ deviations, and the mean plus or minus three standard deviations is shown in the attached photo

1 standard deviation = 5

2 standard deviations = 2 × 5 = 10

3 standard deviations = 3 × 5 = 15

1 standard deviation from the mean lies between (40 - 5) and (40 + 5)

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b) We would apply the probability for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = sample mean

µ = population mean

σ = standard deviation

From the information given,

µ = 40

σ = 5

the probability that a randomly selected score will be greater than 50 is expressed as

P(x > 50) = 1 - P( ≤ x 50)

For x = 50,

z = (50 - 40)/5 = 2

Looking at the normal distribution table, the probability corresponding to the z score is 0.98

P(x > 50) = 1 - 0.98 = 0.02

7 0
3 years ago
What is the midpoint of (-4,4), (5,-1)
oee [108]
The midpoint is (0.5, 1.5)
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8 0
3 years ago
A baseball team won 10 games and lost 7 games. Approximately what percent of games did the team win?
PilotLPTM [1.2K]
10/17= 0.588

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This is correct. :)
7 0
3 years ago
Read 2 more answers
The question is in the picture
Blizzard [7]
I think is that one that say <-5,-3> yeah because 3×5=15 you have to choose what other number × 3 that equal to that following answer.
3 0
3 years ago
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