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vladimir2022 [97]
3 years ago
15

For brainiest:):):):):):)

Mathematics
2 answers:
Georgia [21]3 years ago
5 0

Answer:

1.5/8

decimal=0.625

percent=62 1/2%

2.1/6

decimal=0.167

percent=16 2/3%

3.3/1000

decimal=0.003

percent=0.3%

nikitadnepr [17]3 years ago
4 0
Dam I forgot :/ wha it was
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worty [1.4K]

Answer:

75

Step-by-step explanation:

First divide 2/5 to get 0.4. Then divide 30 by 0.4 to get the answer. A simple way to think about it is how many 0.4 grams are in 30 gram tube.

5 0
3 years ago
Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________
Tresset [83]

Using the normal distribution, it is found that the correct option is:

  • D. 1; 100

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

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In this problem:

  • The mean on the Wechsler Scale is of 100, hence \mu = 100.
  • The standard deviation is of 17, hence \sigma = 17.
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Then:

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

Z = \frac{117 - 100}{17}

Z = 1

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0
3 years ago
Find the surface area of the figure.<br> 13.5 m m<br> 2<br> 9 m<br> 9 m
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Answer and Step-by-step explanation:

Work in Picture:

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4 0
3 years ago
What is the scientific notation for 7,560
yawa3891 [41]

Answer:

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Step-by-step explanation:

Hope this helps :)

4 0
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3 years ago
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