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katovenus [111]
3 years ago
14

Help with geometry questions 45 points

Mathematics
1 answer:
koban [17]3 years ago
5 0
Find the ratio 64/12; it is 5 1/3, or 5.33 (repeating decimal).

                                                        (l1 + l2)
The area of the smaller trap is A = ------------ * h                                                                                                                  2
                                          l1 + 12
which becomes       A = ----------------- * h which in turn equals 131 m^2.
                                               2

                                                        5.33*l1 + 5.33(12)
The area of the larger trap is A = ----------------------------- * 5.33*h                                                                                           2

This is equivalent to 5.33(l1+12) * 5.33h
                                 --------------------------, which is (5.33)^2 times 1.31 m^2, 
                                                 2

so our final answer (area of the larger trap) is  (5.33)^2*131 m^2, or
3726.2 m^2.
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Answer:

The linear regression equation that represents  the set of data is:

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Step-by-step explanation:

The general form of a linear regression is:

y=a+bx

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

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<em>b</em> = slope

Compute the values of <em>a</em> and <em>b</em> as follows:

\begin{aligned}        a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} =             \frac{ 6857 \cdot 55 - 15 \cdot 17558}{ 6 \cdot 55 - 15^2} \approx 1083.476 \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2}        = \frac{ 6 \cdot 17558 - 15 \cdot 6857 }{ 6 \cdot 55 - \left( 15 \right)^2} \approx 23.743\end{aligned}

The linear regression equation that represents  the set of data is:

y=1083.48+23.73x

Compute the predicted value of the number of new cases for 2013 (i.e. <em>x</em> = 12) as follows:

y=1083.48+23.73x

  =1083.48+(23.73\times12)\\\\=1083.48+284.76\\\\=1368.24\\\\\approx 1368

Thus, the predicted number of new cases for 2013 is 1368.

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<h3>Cost of renting;</h3>

According to the question;

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