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Evgesh-ka [11]
1 year ago
8

I need to know how to solve this statistics answer

Mathematics
1 answer:
8_murik_8 [283]1 year ago
8 0

Given,

The value of N is 7.

The mean of the data is 13.

Required

The value of sum of the data.

The mean is calculated as,

\begin{gathered} Mean=\frac{\sum_x}{N} \\ 13=\frac{\sum_x}{7} \\ \sum_x=13\times7 \\ \sum_x=91 \end{gathered}

Hence, the value of sum of data is 91.

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The vertices of a triangle are A(2,5), B(1, 2), and C(3, 1). Find the coordinates of the image after a dilation with respect
Dmitry_Shevchenko [17]

The coordinates of the image after a dilation with respect to the origin is A'' (2,10), B" (0,4), C" (4,2) .

<h3>How does dilation work?</h3>

Dilation of a figure will leave its sides get scaled (multiplied) by same number. That number is called the scale factor of that dilation.

Its also called scaling of a figure, but due to the involvement of coordinates, it involves a center of a dilation, which is like a pinned point that stays at the same place after dilation.

Its like we enlarge or shorten the size of the figure (or keep it same, when scale factor = 1).

The vertices of a triangle are A(2,5), B(1, 2), and C(3, 1).

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B' = 2(1,2) = (2,4)

C' = 2(3,1) = (6,2)

Translation of 2 units left means change in x

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B" = (2-2,4) = (0,4)

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Translation of 1 units up means change in y

Learn more about vertices ;

brainly.com/question/27886655

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7 0
2 years ago
Please answer this question
USPshnik [31]

Answer:

C - The relationship represents a function because each input gives one unique output.

Step-by-step explanation:

To see if it is a function we can do the line test where we have a vertical line and "drag" it along the line. As long as it only hits the line once in every situation it is a function! We can see this passes and therefore the answer is c.

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Answer:

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