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vfiekz [6]
3 years ago
9

Si se suma por una parte la población de las entidades que se encuentran en la frontera del norte y por otra las de la frontera

del sur ¿cuáles reúnen más habitantes?
Mathematics
1 answer:
oee [108]3 years ago
7 0
I dont understand im sorry i wish i could help
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Please I need help!!
telo118 [61]

The regression equation which correctly models the data in this table is y = 1.49x - 107.5,

<h3>How to determine the regression equation?</h3>

From the table of data values, we have the following parameters:

∑x = 632

∑y = 404

∑x² = 80.142

∑xy = 51.448

Mathematically, the regression equation is represented by the following slope equation:

y = Bx + A

Next, we would determine A by using this expression:

A = (∑y·∑x² - ∑x·∑xy)/(n∑x² - (∑x)²)

A = (404×80,142 - 632×51,448)/(5×∑x² - (632)²)

A = (32,377,368 - 32,515136)/(5×80142 - 399,424)

A = -137,768/1286

A = 107.5

For B, we have:

B = (n∑xy· - ∑x·∑y)/(n∑x² - (∑x)²)

B = (5×51,448 - 632×404)/(5×∑x² - (632)²)

B = 1.49.

y = Bx + A

y = 1.49x - 107.5

Read more about regression equation here: brainly.com/question/28037520

#SPJ1

7 0
1 year ago
Find the value of x that will make A||B
Ira Lisetskai [31]

Answer:

15?

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
You cut off half of a strip of paper. then you cut half of the piece was left. then you cut half of the remaining piece.
lianna [129]

Answer:

The fraction of the original strip left is \frac{1}{8}.

Step-by-step explanation:

We have that,

A strip of paper is cut in \frac{1}{2}. So, the strip of paper left is \frac{1}{2}.

Now, again the remaining part is cut in half. The part left will be  \frac{1/2}{2} i.e.  \frac{1}{4}.

Finally, the remaining part is again cut in half.

We get, the final part of the paper remaining is  \frac{1/4}{2} i.e.  \frac{1}{8}.

So, the fraction of the original strip left is \frac{1}{8}.

6 0
3 years ago
Need the answer to this
Olegator [25]

Answer:

4.5 per package

Step-by-step explanation:

Though they give us 4 different pairs of values on the table, we only need 1 pair to solve this question. For simplicity, lets chose the pair of whole numbers:

54 : 12

This is the ration of servings to packages, or the servings per package.

To get our answer, we must find how many servings per 1 package, so we need to divide by 12:

\frac{54}{12} : \frac{12}{12}

   =

4.5 : 1

This means that there are 4.5 servings per 1 package!

Hope this helps!

4 0
2 years ago
What is the area of a trapezoid ABCD with bases AB and CD ,
Mrrafil [7]

check the picture below on the top side.


we know that x = 4 = b, therefore,  using the 30-60-90 rule, h = 4√3, and DC = 4+8+4 = 16.


\bf \textit{area of a trapezoid}\\\\&#10;A=\cfrac{h(a+b)}{2}~~&#10;\begin{cases}&#10;a,b=\stackrel{bases}{parallel~sides}\\&#10;h=height\\[-0.5em]&#10;\hrulefill\\&#10;a=8\\&#10;b=\stackrel{DC}{16}\\&#10;h=4\sqrt{3}&#10;\end{cases}\implies A=\cfrac{4\sqrt{3}(8+16)}{2}&#10;\\\\\\&#10;A=2\sqrt{3}(24)\implies \boxed{A=48\sqrt{3}}


now, check the picture below on the bottom side.


since we know x = 9, then b = 9, therefore DC = 9+6+9 = 24, and h = b = 9.


\bf \textit{area of a trapezoid}\\\\&#10;A=\cfrac{h(a+b)}{2}~~&#10;\begin{cases}&#10;a,b=\stackrel{bases}{parallel~sides}\\&#10;h=height\\[-0.5em]&#10;\hrulefill\\&#10;a=6\\&#10;b=\stackrel{DC}{24}\\&#10;h=9&#10;\end{cases}\implies A=\cfrac{9(6+24)}{2}&#10;\\\\\\&#10;A=\cfrac{9(30)}{2}\implies \boxed{A=135}

7 0
3 years ago
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