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mars1129 [50]
3 years ago
14

What is the s plop of the line passes through the points (-2,15) and (-8,-5) show your work,

Mathematics
1 answer:
grigory [225]3 years ago
8 0
Slope=y1-y2/x1-x2
15--5/-1--8
20/7
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Lin’s family has completed 30% of a trip. They have traveled 60 miles. How far is the trip?
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50 miles

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Ayliah is 7 years more than 1/2 of Deb's age<br> use x for the variable
irina [24]

Answer:

The expression \frac{1}{2}x+7 can be used to find Ayliah's age.

Step-by-step explanation:

Given statement is:

Ayliah is 7 years more than 1/2 of Deb's age.

Let,

x represent Deb's age.

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Ayliah's age = \frac{1}{2}x+7

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The expression \frac{1}{2}x+7 can be used to find Ayliah's age.

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The sum of digits of the 2digits. No is 12if the new number formed by reversing the digits is greater than the original number f
kodGreya [7K]

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On a measure of artistic abilities the mean for college students in New Zealand is 150 and a standard deviation is 25 give the Z
Digiron [165]

The method for computing a z-score is  \bold{z = \frac{(x-\mu)}{\sigma}}, where x is the crude score, \bold{\mu} is the mean population, and \bold{\sigma} seems to be the <em><u>standard population difference.</u></em>

  • The Z value of x is a number \bold{\frac{(x - \text{mean(series))}}{\text{SD(series)}}} are defined where SD is the standard deviation.
  • Here, we consider series as scores of students of colleges in New Zealand for their artistic abilities.

\bold{\bar{x}=150}\\\\ \bold{\sigma=25}

following are the calculation of the Z scores:

\to \ (a)\  100:\  \text{Z score}=\frac{(100-150)}{25}= \frac{(-50)}{25} = -2\\\\\to \ (b)\  120:\  \text{Z score}=\frac{(120-150)}{25}= \frac{(-30)}{25} = -1.2\\\\\to \ (c)\  140:\  \text{Z score}=\frac{(140-150)}{25}= \frac{(-10)}{25} = -0.4\\\\\to \ (a)\  160:\  \text{Z score}=\frac{(160-150)}{25}= \frac{(10)}{25} = 0.4\\\\

Using formula:

\to \text{Raw score = Mean(series) +Z score} \times \text{SD(series)}

Calculating the Raw scores:

\text{(e) -1: Raw score= 150 +(-1)} \times 25 = 125 \\\\\text{(f) -0.8: Raw score= 150 +(-0.8)} \times 25 = 130\\\\\text{(e) -0.2: Raw score= 150 +(-0.2)} \times 25 = 145\\\\\text{(e) 1.38: Raw score= 150 +(1.38)} \times 25 = 184.5\\\\

Learn more:

brainly.com/question/12865701

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2 years ago
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