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hodyreva [135]
2 years ago
9

Polygon VVV has an area of 111 square unit. Jun-seo drew a scaled version of Polygon VVV using a scale factor of 777 and labeled

it Polygon WWW. What is the area of Polygon WWW?
Mathematics
2 answers:
AVprozaik [17]2 years ago
8 0

Answer:

Polygon\ W = 49\ unit^2

Step-by-step explanation:

Given

Polygon\ V = 1\ unit^2 ---- Area:

Polygon W = Scale factor of 7 of V

Required

Determine the area of polygon W

We have that:

Polygon\ V = 1\ unit^2

This can be further expressed as:

Polygon\ V = 1\ unit * 1\ unit

Since, polygon W has a scaled factor of 7 of V, we have;

Polygon\ W = 7* 1\ unit * 7 * 1\ unit

Polygon\ W = 7\ unit * 7\ unit

Polygon\ W = 49\ unit^2

vivado [14]2 years ago
3 0

Answer:

69

Step-by-step explanation:

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3 years ago
The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (2008 data). The average c
ivanzaharov [21]

Answer:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

Step-by-step explanation:

Information given

\bar X represent the sample mean

\mu population mean (variable of interest)

\sigma= 500 represent the population standard deviation

n represent the sample size  

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{s}{\sqrt{n}}    (a)

And on this case we have that ME =120 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

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