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3 years ago

What were the 3 major interactions between pastoral and agricultural peoples

1 answer:

3 0

Pastoral societies supported far smaller populations.
Pastoral societies generally lived in small and widely scattered and campement of related kinfolk.

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Explain in detail, how you solved the following problem: The first two terms of a sequence are 10 and 20. If each term after the

KIM [24]

Answer:

$T_{2020} = 15$

Explanation:

Given

$T_1 = 10$

$T_2 = 20$

Each term after the second term is the average of all of the preceding terms

Required:

Explain how to solve the 2020th term

Solve the 2020th term

Solving the 2020th term of a sequence using conventional method may be a little bit difficult but in questions like this, it's not.

The very first thing to do is to solve for the third term;

The value of the third term is the value of every other term after the second term of the sequence; So, what I'll do is that I'll assign the value of the third term to the 2020th term

This is proved as follows;

From the question, we have that "..... each term after the second term is the average of all of the preceding terms", in other words the MEAN

$T_{n} = \frac{\sum T{k}}{n-1} ; where: k = 1 .... n -1$

Assume n = 3

$T_{3} = \frac{T_1 + T_2}{2}$

Multiply both sides by 2

$2 * T_{3} = \frac{T_1 + T_2}{2} * 2$

$2T_{3} = T_1 + T_2$

Assume n = 4

$T_{4} = \frac{T_1 + T_2 + T_3}{3}$

$T_{4} = \frac{(T_1 + T_2) + T_3}{3}$

Substitute $2T_{3} = T_1 + T_2$

$T_{4} = \frac{2T_3 + T_3}{3}$

$T_{4} = \frac{3T_3}{3}$

$T_{4} = T_3$

Assume n = 5

$T_{5} = \frac{T_1 + T_2 + T_3 +T_4}{4}$

$T_{5} = \frac{(T_1 + T_2) + T_3 +(T_4)}{4}$

Substitute $2T_{3} = T_1 + T_2$ and $T_{4} = T_3$

$T_{5} = \frac{2T_3 + T_3 +T_3}{4}$

$T_{5} = \frac{4T_3}{4}$

$T_{5} = \frac{(5-1)T_3}{5-1}$

Replace 5 with n

$T_{n} = \frac{(n-1)T_3}{n-1}$

(n-1) will definitely cancel out (n-1); So, we're left with

$T_{n} = T_3$

Hence,

$T_{2020} = T_3$

Calculating $T_3$

$T_{3} = \frac{10 + 20}{2}$

$T_{3} = \frac{30}{2}$

$T_{3} = 15$

Recall that $T_{2020} = T_3$

$T_{2020} = 15$

3 0

3 years ago

Define the following terms: nucleus, organelle, DNA.

Zigmanuir [339]

Answer:

nucleus-the central and most important part of a cell forming the basis for its activity and growth.

organelle- miniscule organs and specialized structures within a living cell, required for cell life and functions

DNA- AKA Deoxyribonucleic acid is a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

Explanation:

7 0

3 years ago

A federal tax is paid to 1.1.7 quiz

Artist 52 [7]

a federal tax is paid to the federal governemnt

8 0

3 years ago

Read 2 more answers

Which of the following countries is most likely to import more food that it exports? a. United States

Nat2105 [25]

Japan Sama is your answer .-.

8 0

3 years ago

If students gossip about teachers, is that also ethically wrong? why or why not ?

AlekseyPX

Shayshay12317,

It is indeed "wrong." Why? It is because if students gossip about the teachers, the teacher would be less likely to help that student pass their class. For example, imagine if Micheal was gossiping about how the teacher walks and the teacher found out Micheal said those things. So, when Micheal needs extra credit the teacher would be less likely to give him less credit because he said those things.

Hope this helps!

3 0

3 years ago