All categories

3 years ago

, what is MOST LIKELY the biggest concern for someone living in Sub-Saharan Africa?

Advanced Placement (AP)

2 answers:

Bas_tet [7]3 years ago

5 0

Answer: The answer is D most likly to be

Explanation:

Dimas [21]3 years ago

3 0

I think b your welcome

You might be interested in

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

TJ and Colton have to fold letters and then seal envelopes for a political campaign. It takes TJ 40 seconds to fold a letter but

vfiekz [6]

Well duh it's Colton

8 0

3 years ago

Which of the following countries has established a democratic government MOST recently?

Degger [83]

Answer:

am thinking of India and south Africa and am pretty sure is India.

4 0

3 years ago

Airborne chemical substances travel up the nose to the olfactory_____, which is the receptor got smell

Vlada [557]

Answer:

c) bulb

Explanation:

Airborne chemical substances travel up the nose to the olfactory bulb , which is the receptor got smell

3 0

3 years ago

In visual search experiments for inefficient conjunction searches, when the data for “target absent” and “target present” condit

LiRa [457]

Answer:I got it right it’s 1/2

Explanation:

4 0

2 years ago