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elena-14-01-66 [18.8K]
3 years ago
10

What polygon is formed?

Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

Answer:

Polygons are figures that are formed by three or more line segments. These line segments, even called sides, meet at their endpoints to form vertices. If we compare the number of sides, diagonals and triangles of a quadrilateral a pentagon and a hexagon we can find a system between the different polygons.

Step-by-step explanation:

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The measurement of the second angle is 150°.
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pychu [463]

Responder:

El tiempo que toma A para completar el trabajo solo es de 20 días.

Explicación paso a paso:

datos proporcionados:

Tiempo que tarda (A + B) en terminar el trabajo = 12 days.

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entonces el tiempo que B tomó para completar el trabajo solo = x+10

1 día de trabajo de A + B = \frac{1}{12}

1 día de trabajo de A = \frac{1}{x}

1 día de trabajo de B = \frac{1}{x+10}

1 día de trabajo de A = {(

1 día de trabajo de A + B} - {1 día de trabajo de B}

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Resolviendo la ecuación que obtenemos.

\frac{1}{x} =((\frac{x+10}{12(x+10)})-(\frac{1\times12}{12(x+10)}))

\frac{1}{x} =(\frac{x+10-12}{12x+120})

\frac{1}{x} =(\frac{x-2}{12x+120})

12x+120=x(x-2)

12x+120=x^2-2x

x^2-2x-12x-120=0

x^2-14x-120=0

x^2+6x-20x-120=0

x(x-6)-20(x-6)=0

(x-20)(x+6)=0

Ahora resolviendo 2 valores de x obtenemos

x-20=0\\x=20

x+6 =0\\x =-6

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