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Nookie1986 [14]
2 years ago
13

WILL GIVE BRAINLIEST

Mathematics
2 answers:
mash [69]2 years ago
6 0

Answer:

(16,-1)

Step-by-step explanation:

Novay_Z [31]2 years ago
5 0

Answer:

x \: midpoint = \frac{x1 + x2}{2}

y \: midpoint =  \frac{y1 + y2}{2}

subs points into formula:

x =  \frac{32 + 0}{2}  = 16 \\ y =  \frac{ - 1 + ( -12 )}{2}  =  \frac{ - 13}{2}

midpoint is:

(16,   \frac{ - 13}{2} )

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A college conducts a common test for all the students. For the Mathematics portion of this test, the scores are normally distrib
Jet001 [13]

Using the normal distribution, it is found that 58.97% of students would be expected to score between 400 and 590.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 502, \sigma = 115

The proportion of students between 400 and 590 is the <u>p-value of Z when X = 590 subtracted by the p-value of Z when X = 400</u>, hence:

X = 590:

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

Z = \frac{590 - 502}{115}

Z = 0.76

Z = 0.76 has a p-value of 0.7764.

X = 400:

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

Z = \frac{400 - 502}{115}

Z = -0.89

Z = -0.89 has a p-value of 0.1867.

0.7764 - 0.1867 = 0.5897 = 58.97%.

58.97% of students would be expected to score between 400 and 590.

More can be learned about the normal distribution at brainly.com/question/27643290

#SPJ1

6 0
2 years ago
I need assistance solving these questions using Cramers' Rule (which I am frankly terrible at) and need these to finish my homew
Scrat [10]

Answer:

What are the questions?

3 0
3 years ago
Read 2 more answers
Need help ^^^^^^^^^^
NeX [460]
The answer is B. 2y+3
this is proven by multiplying the divisor of the original question and the solution
(y-5)(2y+3)&#10;  2y^{2}+3y-10y-15&#10;  2y^{2}-7y-15
4 0
3 years ago
Need help don’t understand
sineoko [7]

The weight is proportional to the price. So if 10lb cost $18.24, quarter as much (2.5lb) would cost four times less($18.24÷4=$4.56).

7 0
3 years ago
Find the sum of each group of numbers. You may add the numbers in any order. Then, check your work by adding the numbers again i
Len [333]
The sum of each group of numbers are as follows:
1. 110 + 83 + 328 = 521
2. 92 + 37 + 14  + 66 = 209
3. 432 + 11 + 157 + 30 = 630
It does not matter how much you re-arrange the numbers in each group, you will keep arriving at the same answers, this is because the sum of a particular set of numbers will always remain the same.
6 0
3 years ago
Read 2 more answers
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