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sukhopar [10]
3 years ago
11

A meteorologist keeps hourly temperature records over the course of several years in order to look for long-term variations. Thi

s is an example of what kind of statistical study?
Mathematics
1 answer:
Aleks04 [339]3 years ago
4 0

Answer:

Observational study

Step-by-step explanation:

There are 3 types of statistical study:

1) Experimental: Under this, any experiment is done on a certain group of population.

2) Observational: Under this study, the events are observed regularly and the record is made.

3) Survey : Under this study, a survey is conducted with a a group of population and the record is made.

According to question, A meteorologist keeps hourly temperature records over the course of several years in order to look for long-term variations, this is an example of <u>observational study</u>.

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5. John is now three times as old as Bill.
svetlana [45]

Answer:

12 is johns age

Step-by-step explanation:

all you have to do is multiply johns age times 3 then you get your anser

8 0
2 years ago
What is the value of A?<br> -3x<br> -3x²<br> -5x<br> –5x²
frosja888 [35]

Answer:

i need to see all the problem

8 0
3 years ago
The distance between points (3,7) and (x1-y1) is the square root of (x1-3)2+(y1-7)2
galben [10]

Answer:

True

Step-by-step explanation:

In analytical geometry, you can find the distance between two points situated on the same plane using the distance formula. The equation is

d = √[(x2-x1)^2+(y2-y1)^2]

This can be applied by first applying which is point 1 or point 2. Technically, it does not matter which is which, as long as you are consistent in pairing of the x,y coordinates. In this case, point 1 is (3,7) and point 2 is (x1,y1). Therefore, when you substitute the values, the distance would be 

d = √[(x1-3)^2+(y1-7)^2]

The statement is TRUE.

I hope this helped. I am not sure it did. But I hope it helped you. I hope you get the question right. And I am sorry if you get the question wrong.

7 0
3 years ago
I need help one this
sashaice [31]

The complete proof is:

Statement                                                   Reason

∠WZX ≅ ∠WZV                                          Given

∠WZX and ∠WZV are a linear pair           Definition of a linear pair

m ∠WZX + m ∠WZV = 180°                        Linear pairs theorem

m ∠WZX + m ∠WZX = 180°                        Substitution

m ∠WZX = 90°                                            Subtraction property of equality

WY ⊥ VX                                                     Definition of perpendicular lines

From the question, we are to complete the proof by dragging the word choices to supply the missing statements and reasons

Studying the given diagram and applying the proper theorems,

The complete proof is:

Statement                                                   Reason

∠WZX ≅ ∠WZV                                          Given

∠WZX and ∠WZV are a linear pair           Definition of a linear pair

m ∠WZX + m ∠WZV = 180°                        Linear pairs theorem

m ∠WZX + m ∠WZX = 180°                        Substitution

m ∠WZX = 90°                                            Subtraction property of equality

WY ⊥ VX                                                     Definition of perpendicular lines

Learn more on Proof of theorems here: brainly.com/question/11246427

#SPJ1

3 0
1 year ago
7x - 3 = 5x + 5 \I need to know if it has no solution infinite solutions or no solutions
Serjik [45]

Answer:

one solution

Step-by-step explanation:

7x - 3 = 5x + 5 ( subtract 5x from both sides )

2x - 3 = 5 ( add 3 to both sides )

2x = 8 ( divide both sides by 2 )

x = 4

8 0
3 years ago
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