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Gelneren [198K]
3 years ago
8

Turn English phrase into algebraic expression. Let x represent the number.

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
7 0
The answer to this question is 6-1/2x
vladimir1956 [14]3 years ago
5 0

Answer:

(1/2x)-6

Step-by-step explanation:

Hope this helps

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The correct answer is:

$5.75

2.3% of 250 is 5.75.


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Margo is designing a label. The dimensions of the label are 3 1/2 inches by 1 1/4 inches. What is the area of the label?
Damm [24]

Answer:

4.375 sq. in.

Step-by-step explanation:

multiply 1.25 by 3.5 and you get 4.375

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532.0419 what is the place values
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Answer:

4 is in the hundredths 1 is in thousandths 9 is in the 10 thousandths

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What is the slope<br> of the line in this graph?
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5/7

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Height, in meters, is measured for each person in a sample. After the data are collected, all the height measurements
charle [14.2K]

Answer:

(E) The z-scores of the height measurements

Step-by-step explanation:

Mean is given by

\bar {x}=\frac{1}{n}\left(\sum _{i=1}^{n}{x_{i}}\right)=\frac{x_{1}+x_{2}+\cdots +x_{n}}{n}

Where,

n = Number of people

x_{i} = The heights of people

When converting m to cm the mean would be

\bar {x}=\frac{1}{n}\left(\sum _{i=1}^{n}{x_{i}}\right)\times 100

So, the mean would change

The median gives us the middle data value when the data values are in ascending order.

So, the median would change

Standard deviation

s=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\bar{x})^2}

When converting to centimeters

s=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}\left((x_i-\bar{x})\times 100\right)^2

Hence, the standard deviation would change

When converting to centimeters the maximum height in meters would be the maximum height in centimeters also.

The z score is given by

z=\frac{x-\mu}{\sigma}

where,

x = Data point

\mu = Mean

\sigma = Standard deviation

When converting to centimeters

z=\frac{(x-\mu)\times 100}{\sigma\times 100}\\\Rightarrow z=\frac{x-\mu}{\sigma}

Hence, the z score would remain the same

5 0
3 years ago
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