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3 years ago

Can u plzzzzz just do any if u know them plz

1 answer:

4 0

Hello.

1. This is true.
Platans have a constant patttern.

2. True.
The oldest plant fossils indicate plants only had stems but no leaves, flowers, or roots.

3.False.
False. Tubers and rhizomes are apparently stems.

4.True.

5. True.

6.True.
monocots veins are run parallel
7.False
The 2 groups are dicots and monocots

8. True.
They have parrell venation.

Have a nice day

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The function $f(n)=log_{0.96}(\frac{n}{186})$

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Wherever we are studying logarithmic decrease or increase, we can construct our logarithmic function following the next recipe :

$f(n)=log_{x}(\frac{n}{y})$ (I)

Where $''n''$ is the value that we want to obtain (following a logarithmic decrease or increase).

Where $''f(n)''$ is the time needed to obtain that variation.

Where $''x''$ is the parameter related to the percentage decrease or increase

And where $''y''$ is known as the original population.

Now let's use the question to learn how to use the expression (I) :

In order to find the parameter $''x''$ we need to know how porcentual the population changes. We know that the number of insect species decrease by 4 % per month.

Therefore, for the initial month we will have the 100 % of the number of insect species. For the first month we will have a decrease of 4 % which can be written as the 96 % of the original population.

We write 100 % - 4 % = 96 % ⇔ $1-0.04=0.96$

That's how we obtain the parameter $x$ . In this case we subtract 0.04 to the original population 1 because we have a decrease. Otherwise we would have added if we had had an increase. The number 0.96 represents that month by month we obtain the 96 % from the previous month. The value from the parameter is $x=0.96$

Now the original population of insect species is $186$ . Therefore the value for $y$ is $y=186$ . Using the values obtained in the expression (i) we have :