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SpyIntel [72]
3 years ago
12

I need help! anyone know this?

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
5 0
Yeah, x= 7/2 and y= -5/2
Please mark as brainliest and I hope this helps
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What is an equation of the line that passes through the points (4,3) and (-6,3)?​
Shalnov [3]

Answer:

y = 0x +3 or just y = 3

Step-by-step explanation:

m= 3-3/-6-4

= 0/-10 = 0

3= 0(4) +b

3=b

     

7 0
3 years ago
Please help me yall
allochka39001 [22]
The coordinates of D is (3,-1) i’m pretty sure if not i’m sorry.
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Which table shows a linear function?<br> Will mark brainliest
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Answer:

All of them

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none of the graphs repeat any numbers on the x

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Find four consecutive integers with the sum of 54
Maksim231197 [3]

54/4 = 13.5

 take the 2 whole numbers below 13.5 and the 2 whole numbers above 13.5

12 + 13 + 14 + 15 = 54

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2 years ago
For a medical study, a researcher wishes to select people in the middle 60% of the population based on blood pressure.
Finger [1]

Answer:

Lower limit: 113.28

Upper limit: 126.72

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 120, \sigma = 8

Middle 60%

So it goes from X when Z has a pvalue of 0.5 - 0.6/2 = 0.2 to X when Z has a pvalue of 0.5 + 0.6/2 = 0.8

Lower limit

X when Z has a pvalue of 0.20. So X when Z = -0.84

Z = \frac{X - \mu}{\sigma}

-0.84 = \frac{X - 120}{8}

X - 120 = -0.84*8

X = 113.28

Upper limit

X when Z has a pvalue of 0.80. So X when Z = 0.84

Z = \frac{X - \mu}{\sigma}

0.84 = \frac{X - 120}{8}

X - 120 = 0.84*8

X = 126.72

4 0
3 years ago
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