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Ainat [17]
3 years ago
7

Someone please answer 28 points please answer with the right facts and the explanation thank you

Mathematics
1 answer:
Otrada [13]3 years ago
4 0

Answer:

The transformation

(x,y) \rightarrow (x-5,-y+1)

maps triangle XYZ onto triangle X”Y”Z”.

Step-by-step explanation:

Let us take point Z on the XYZ triangle and see what sequence of transformations we have to apply to map it into the point Z''.

Now Z = (-2, 2) and Z'' = (-7, -1).

The x-coordinate goes from -2 ⇒ -7.

The y-coordinate goes from 2 ⇒  -1.

The x-coordinate is just shifted by -5; thus, x \rightarrow x-5, and the y-coordinate first transforms as y \rightarrow -y, and is then shifted by 1; thus, it transforms as y \rightarrow -y+1.

So we have the full transformation

(x,y) \rightarrow (x-5,-y+1)

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disa [49]
The answer is A. x is greater than -50

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x-8/6 = -7
x-8 = -42
x = -42+8
x = -50

X is greater than -50
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A simple random sample of 5 months of sales data provided the following information: Month: 1 2 3 4 5 Units Sold: 94 105 85 94 9
11111nata11111 [884]

Answer:

a) x = 94 units/month

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Step-by-step explanation:

The adequate point estimation of the population mean and standard deviation are the sample mean and sample standard deviation.

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M=\dfrac{1}{n}\sum_{i=1}^n\,x_i\\\\\\M=\dfrac{1}{5}(94+105+85+94+92)\\\\\\M=\dfrac{470}{5}\\\\\\M=94\\\\\\

b) Point estimation of the population standard deviation (sample standard deviation)

s=\dfrac{1}{n-1}\sum_{i=1}^n\,(x_i-M)^2\\\\\\s=\dfrac{1}{4}((94-94)^2+(105-94)^2+(85-94)^2+(94-94)^2+(92-94)^2)\\\\\\s=\dfrac{206}{4}\\\\\\s=51.50\\\\\\

4 0
3 years ago
How do you find the slope intercept form for a slope that is -2 passing through points (4,-3)
Veseljchak [2.6K]
To find the slope intercept form, you plug in the slope and the points given and find whats missing
y=mx+b
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Step-by-step explanation:

I'm not sure of the answer but if I'm wrong tell me I'll continue trying it is a pleasure to help you.

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Answer:

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