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Yuki888 [10]
3 years ago
12

usa el teorema de la altura para proponer como se podria construir un segmento cuya longitud sea media proporcional entre dos se

gmentos de 4 cm y 9 cm.¿como se podria construir si los segmentos son de a cm y b cm?

Mathematics
1 answer:
Mrac [35]3 years ago
6 0
Usando el teorema de altura 

El teorema de altura relaciona la altura (h) de un triángulo rectángulo (ver figura) y los catetos de dos triángulos que son semejantes al anterior ABC, al trazar la altura (h) sobre la hipotenusa. De manera que e<span>n todo </span>triángulo rectángulo, la altura (h<span>) relativa a la </span>hipotenusa<span> es la </span>media geométrica<span> de las dos proyecciones de los </span>catetos<span> sobre la </span>hipotenusa<span> (</span>n<span> y </span>m<span>). Es decir, se cumple que:

</span>\frac{n}{h}= \frac{h}{m}

Dado que el problema establece <span>construir un segmento cuya longitud sea media proporcional entre dos segmentos de 4 y 9 cm, entonces, digamos que n = 4cm y m = 9cm tenmos que:

</span>\frac{4}{h}= \frac{h}{9}

De donde:

h= \sqrt{(4)(9)}=\sqrt{36}=6cm

¿Cómo se podria construir si los segmentos son de a cm y b cm?

Si los segmentos son de a y b cm entonces a y b son parámetros que pueden tomar cualquier valor positivo siempre que se cumpla que:

h= \sqrt{ab}

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The answer is 14 plants.


Explanation:


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Hope it helps!

5 0
3 years ago
What are the domain and range of the inequality y &lt; sqrt x+3+1
love history [14]

Given:

The inequality is:

y

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The domain and range of the given inequality.

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y

The related equation is:

y=\sqrt{x+3}+1

This equation is defined if:

x+3\geq 0

x\geq -3

In the given inequality, the sign of inequality is <, it means the points on the boundary line are not included in the solution set. Thus, -3 is not included in the domain.

So, the domain of the given inequality is x>-3.

We know that,

\sqrt{x+3}\geq 0

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So, the domain of the given inequality is y>1.

Therefore, the correct option is A.

3 0
3 years ago
A ladder is leaning against a wall. The top of the ladder is 9 feet (ft) above the ground. If the bottom of the ladder is moved
Komok [63]

Step 1

<u>First situation</u>

when a ladder is leaning against a wall

Let

x-------> the distance of the bottom of the ladder from the wall

L-------> the length of the ladder

<u>Find the length of the ladder</u>

Applying the Pythagorean Theorem

L^{2} =x^{2}+ 9^{2} ------> equation 1

Step 2

<u>Second situation</u>

when the ladder will be lying flat on the ground

<u>Find the length of the ladder</u>

In this situation the length of the ladder is equal to

L=x+3

square both sides

L^{2}=(x+3)^{2} ------> equation 2

Step 3

equate equation 1 and equation 2

x^{2}+ 9^{2}=(x+3)^{2}\\x^{2}+81=x^{2} +6x+9\\ 6x=81-9\\6x=72\\x=12\ ft

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see the attached figure to better understand the problem

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3 years ago
Leo ordered shirts for 12 members of the social work team. He had each person's
Brut [27]

Answer:

$5

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12x3=36

96-36=60

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6 0
3 years ago
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Convert 11/4 to its equivalent mixed number
Minchanka [31]

Answer:

2\frac{3}{4}

Step-by-step explanation:

<u>Step 1:  Convert to mixed number</u>

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1 + 1 + \frac{3}{4}

2\frac{3}{4}

Answer:  2\frac{3}{4}

8 0
3 years ago
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