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Akimi4 [234]
3 years ago
12

-x +2y =-8 find the slope and y intercept

Mathematics
1 answer:
Oksana_A [137]3 years ago
4 0

Answer:

1/2 is slope

Step-by-step explanation:

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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
The ratio of rabbits to cats is 2:4 respectively. If there are
Natasha_Volkova [10]

Answer:

there are 36 cats in one house the ratio is 1:2

Step-by-step explanation:

3 0
3 years ago
4x - 1<br> 2.<br> = x + 7<br> Can someone help please?
tatiyna

Answer:

6\frac{1}{3}

Step-by-step explanation:

4x-12 = x+7

4x-12+12 = x+7+12

4x = x+19

4x-x = x+19-x

3x=19

x = 6\frac{1}{3}

And if we substitute the value of x into the equation 4x-12 = x+7,

we will get 13\frac{1}{3} = 13\frac{1}{3} in the end.

Hope this helps :)

3 0
2 years ago
Read 2 more answers
Please HELPPP! I have been stuck on this for too long.
ipn [44]

Answer: clearly the answer is B hope this helps

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Nicolas wants to rent a carpet shampoo machine. Store A charges a flat fee of $25 plus $8 for each day a customer keeps the mach
GenaCL600 [577]

Answer:

8x+25=5x+35 (x=10/3)

Step-by-step explanation:

The equation for Store A would be: y(cost) = 8x(days) + 25

The equation for Store B would be: y = 5x + 35

So, since he wants the cost to be the same, 8x+25=5x+35

6 0
2 years ago
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