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Karo-lina-s [1.5K]
3 years ago
9

Use the diagram to find the value of x​

Mathematics
1 answer:
tatuchka [14]3 years ago
4 0

Answer:

4

Step-by-step explanation:

18x = 12(x+2)

18x = 12x+24

18x-12x = 24

6x = 24

x = 4

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What percent of 80 is 8
murzikaleks [220]

Answer:

P = 10%

Step-by-step explanation:

Of means multiply and is means equals

P * 80 = 8

Divide each side by 80

P = 8/80

P = .1

Change to percent form

P = 10%

7 0
3 years ago
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What is the percent error of 7cm
antoniya [11.8K]
The answer is 7.14% 

Your ruler measuring centimeters has lines for each centimeter. The rule for error is anything between 6.5 and 7.5 is considered 7cm. So the degree of error is plus or minus .5cm. 
Your aim is 7cm so you divide your error of .5 by your target measurement. .5/7= 7.14 percent.
8 0
3 years ago
According to the United States Health and Human Services, the mean height for Americans is 1.757 meters for men and 1.618 meters
Alchen [17]

Answer:

Her z-score is 2.03.

Step-by-step explanation:

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

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

Michelle’s height is 1.758 meters. What is her z-score?

Michelle's is a woman.

The average height of women is \mu = 1.618 and the standard deviation is \sigma = 0.069

This is Z when X = 1.758. So

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

Z = \frac{1.758 - 1.618}{0.069}

Z = 2.03

Her z-score is 2.03.

7 0
3 years ago
Trapezoid.mp4<br> Find the value of x and y.<br> Rek2<br> 20<br> x<br> 12<br> Y<br> x =<br> y =
algol13

9514 1404 393

Answer:

  • x = 12
  • y = 20

Step-by-step explanation:

The figure only makes sense as a <em>kite</em>, in which case left sides are equal and right sides are equal.

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6 0
2 years ago
Does anyone want to make a discord
antiseptic1488 [7]

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what? okie but...

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Step-by-step explanation:

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2 years ago
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