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Licemer1 [7]
3 years ago
5

Help my plizzz no andestend​

Mathematics
1 answer:
777dan777 [17]3 years ago
8 0

Answer:

1: 2/5, 40%

2: 7/10, 70%

3: 13/20, 65%

4: 21/25, 84%

5: 4/5, 80%

6: 2/10 or 1/5, 20%

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Find the missing values in the ratio table. Then write the equivalent ratios. Forks 16 8 Spoons 10 30 Equivalent ratios are 16:1
lesya [120]
I'm not 100% sure but I think it's 10:10 because of the Spoons - 10:30.
8 0
3 years ago
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
Help please!!!!!!!!!!!
AlexFokin [52]
Angle GQK=90
GQK=GQL+LQK
90=3n+(4n-15)
n=15
Therefore angle LQK=4(15)-15
=45
6 0
3 years ago
How do you write an equation from a line of best fit on a graph?
marshall27 [118]

Answer:

find y intercept and slope

Step-by-step explanation:

8 0
2 years ago
If <2 = 75 degrees and <3 and 30 degrees, find <3 and <4.
Aloiza [94]

Answer:

Angle 1=180-(75+30)=180-105=75

angle 4=angle 1+angle angle 2=150

Step-by-step explanation:

8 0
3 years ago
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