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Natalka [10]
3 years ago
9

4 29 815 15 22 ?what will be the number in question mark?

Mathematics
1 answer:
makkiz [27]3 years ago
7 0

Answer:

23

Step-by-step explanation:

Given:

The sequence of numbers is given as:

4   2

9   8

15  15

22  ?

Let the unknown number be 'x'.

Now, if we observe the numbers that are on the left or right side, we conclude that the difference between two numbers is increasing by 1 .

Right side:                                                       Left side:

8 - 2 = 6                                                           9 - 4 = 5

15 - 8 = 7 ( 6 + 1)                                               15 - 9 = 6

                                                                         22 - 15 = 7

Therefore, the next difference will also increase by 1 and will be equal to 8. So,

x - 15 = 8

Adding 15 both sides, we get:

x-15+15=8+15

x=23

Therefore, the unknown number will be 23.

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Discuss how these two branches of statistics will provide different capabilities and impacts in your engineering discipline. Pro
Makovka662 [10]

Answer:

Key Differences Between Descriptive and Inferential Statistics:

The difference between descriptive and inferential statistics can be drawn clearly on the following grounds:

Descriptive Statistics is a discipline which is concerned with describing the population under study. Inferential Statistics is a type of statistics; that focuses on drawing conclusions about the population, on the basis of sample analysis and observation.

Descriptive Statistics collects, organises, analyzes and presents data in a meaningful way. On the contrary, Inferential Statistics, compares data, test hypothesis and make predictions of the future outcomes.

There is a diagrammatic or tabular representation of final result in descriptive statistics whereas the final result is displayed in the form of probability.

Descriptive statistics describes a situation while inferential statistics explains the likelihood of the occurrence of an event.

Descriptive statistics explains the data, which is already known, to summarise sample. Conversely, inferential statistics attempts to reach the conclusion to learn about the population; that extends beyond the data available.

Ex. Of 350 randomly selected people in the town of Luserna, Italy, 280 people had the last name Nicolussi. An example of descriptive statistics is the following statement :

"80% of these people have the last name Nicolussi."

Ex. Of 350 randomly selected people in the town of Luserna, Italy, 280 people had the last name Nicolussi. An example of inferential statistics is the following statement :

"80% of all people living in Italy have the last name Nicolussi."

We have no information about all people living in Italy, just about the 350 living in Luserna. We have taken that information and generalized it to talk about all people living in Italy. The easiest way to tell that this statement is not descriptive is by trying to verify it based upon the information provided.

6 0
3 years ago
Multiply (x-1)(x³+4x²+4x-1) and combine like terms. Explain how you reached your answer.
Hitman42 [59]

Answer:

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Step-by-step explanation:

To multiply this we are going to <u>multiply each term of the binomial by each term of the polynomial.</u>

(x-1)(x^{3}+4x^{2}  +4x-1)\\=x^4+4x^3+4x^2-x -x^3-4x^2-4x+1

Now we are going to <u>combine like terms (this means we are going to sum up terms with the same exponent)</u>

x^4+4x^3+4x^2-x -x^3-4x^2-4x+1 = x^4 +(4x^3-x^3)+(4x^2-4x^2)+(-x-4x)+1\\=x^4+3x^3-5x+1

Thus, the answer is x⁴+3x³ -5x +1

5 0
3 years ago
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Ilia_Sergeevich [38]

Step-by-step explanation:

I think 160! I don't know it true or not

8 0
3 years ago
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Alisiya [41]

Answer:

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Step-by-step explanation:

the circumference is equal to the radiusx2xpi

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to find the radius from the diameter we just divide it by 2 so the radius is 10

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8 0
3 years ago
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nlexa [21]
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Slope will be same (-2) as the given equation bc they want a parallel line.
Use the given ordered pair and slope to solve for b.
Work:

6 0
3 years ago
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