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3 years ago

Diga cuáles cambios de estados se producen al calentar el hielo y clasifíquelos en progresivos y regresivos ? Emergencia

Biology

1 answer:

tigry1 [53]3 years ago

8 0

Cuando el hielo se calienta, comienza a derretirse y a formar agua, esto es progresivo

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Suppose that we have a given function f(x)

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$r = \frac{f(x_2) - f(x_1)}{x_2 - x_1}$

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f(1985) = 750

f(1995) = 1500

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$r = \frac{1500 - 750}{1995 - 1985} = 750/10 = 75$

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b) What is the density of trees each year that they were counted?

This will be equal to the quotient between the number of trees and the area.

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area = 250 ha

Then the density is:

D(1985) = (750 pines)/(250 ha) = 3 pines/ha

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area = 250 ha

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D(1990) = (1250 pines)/(250 ha) = 5 pines/ha

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area = 250 ha

The density is:

D(1995) = (1500 pines)/(250 ha) = 6 pines/ha

3) now we want to get the average change between 1985 and 1995 in the density, this will be:

$r = \frac{D(1995) - D(1885)}{1995 - 1985} = \frac{6 pines/ha - 3pines/ha}{10} = 0.3 pines/ha$

So, on average, each year the number of pines per hectare increases by 0.3

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3 years ago