Describe one negative environmental impact of piles of tailings left at iron mine sites.

1) Calcula la diagonales de un poligono n lados. Heptágono: 2 puntos

ahrayia [7]

Answer:

El número de diagonales de un polígono de n lados se calcula mediante la siguiente fórmula:

$d = \frac{n\cdot (n-3)}{2}$ (1)

Donde:

$d$ - Cantidad de diagonales del polígono.

$n$ - Cantidad de lados del polígono.

Bajo esta fórmula, tenemos los siguientes resultados:

a) El heptágono tiene 14 diagonales.

b) El octágono tiene 20 diagonales.

c) El eneágono tiene 27 diagonales.

d) El decágono tiene 35 diagonales.

e) El pentadecágono tiene 90 diagonales.

Explanation:

La cantidad de diagonales de un polígono se puede determinar mediante la siguiente ecuación:

$d = \frac{n\cdot (n-3)}{2}$ (1)

Donde:

$d$ - Cantidad de diagonales del polígono.

$n$ - Cantidad de lados del polígono.

A continuación, calculamos la cantidad de diagonales de los siguientes polígonos:

Heptágono ( $n = 7$ )

$d = \frac{7\cdot (7-3)}{2}$

$d = 14$

El heptágono tiene 14 diagonales.

Octágono ( $n = 8$ )

$d = \frac{8\cdot (8-3)}{2}$

$d = 20$

El octágono tiene 20 diagonales.

Eneágono ( $n = 9$ )

$d = \frac{9\cdot (9-3)}{2}$

$d = 27$

El eneágono tiene 27 diagonales.

Decágono ( $n = 10$ )

$d = \frac{10\cdot (10-3)}{2}$

$d = 35$

El decágono tiene 35 diagonales.

Pentadecágono ( $n = 15$ )

$d = \frac{15\cdot (15-3)}{2}$

$d = 90$

El pentadecágono tiene 90 diagonales.

8 0

3 years ago

Why are some locations in non-standard time zones?

mote1985 [20]

Answer:

There are some countries and regions that follow unusual time zones. Many of them are in increments of a half hour, different from the usual hour difference you normally see. People traveling to and from areas of the world that use unusual time zones may become confused or have trouble discerning the local time.

Explanation:

3 0

3 years ago

Make a claim about how PDC deficiency affects the amount of NADH produced by glycolysis AND the amount of NADH produced by the K

Ulleksa [173]

Answer:

Glycolysis: No change - glycolysis continues PFC is not needed, glycolysis occurs before conversation of pyruvate to acetyl - CoA

Krebs Cycle: Decrease - krebs cycle greatly slowed / deceased if there isn't acetyl - CoA; Occurs after conversation of pyruvate to acetyl - CoA

Explanation:

I majored in Advanced Placement

3 0

3 years ago

What do security supervisor do?

kolbaska11 [484]

Answer:

security supervisor should keep an eye on the team's activities on the ground and ensure that they are appropriately trained to engage with visitors, vendors, and employees.

5 0

2 years ago

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Which of the following undercut farmers in developing countries?

hammer [34]

Answer:

A

Explanation: because

3 0

3 years ago

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