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Volgvan
3 years ago
8

A positive negative or no correlation the number of hours a plane in flight in the number of miles flown

Mathematics
1 answer:
MArishka [77]3 years ago
4 0

Answer:

Positive correlation

Step-by-step explanation:

Two variables are said to be correlating if they have some kind of relationship - that is, if the value of one variable increases/decreases as the other variable increases or decreases.

More specifically, there are three types of correlation:

- Positive correlation: this occurs if, as the value of one variable increases, the value other variable increases too

- Negative correlation: this occurs if, as the value of one variable increases, the value of the other variable decreases

- No correlation: this occurs if, as the value of one variable increases, the other variable doesn't show any precise trend

In this problem, we are studying the following two variables:

- Number of hours a plane is flying (t)

- Number of miles flown (d)

The two variables are related by the equation

d=vt

where v is the speed of the plane (in miles per hour).

As we can see from this equation, there is a direct proportionality between the two variables: therefore, as t increases, d increases, and so we can say there is a positive correlation.

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A car uses 1 gallon of gasoline for every 25 miles driven. At the start of a trip the tank was full of gasoline. After driving 5
dezoksy [38]

Answer:

d = 22 - x / 25

Step-by-step explanation:

The first thing is to calculate the tank capacity, we know that per gallon 25 miles are traveled and at 500 miles there were still two gallons, therefore:

500 miles / 25 miles / gallon = 20

and how there were still 2

20 + 2 = 22

the tank has a 22 gallon capacity

Therefore the equation would be:

d = 22 - x / 25

where x is the number of miles traveled.

for example, if they have traveled 500 miles it would be:

d = 22 - 500/25 = 22 - 20

d = 2 gallons

we can verify that it is correct because it is what the statement says

8 0
3 years ago
3 3/4 ÷ 3/4 is equal to a) 5 b) 2 c) 3 d) 1
lions [1.4K]
A) 5
hope this helped :)
3 0
3 years ago
Read 2 more answers
Not sure how to do the write in long form.
tekilochka [14]
1. 100000
2. 0.000000000001
3. 400
5 0
3 years ago
Read 2 more answers
What is 3/10 ÷5/10 ?
olasank [31]
The answer is 30/50 look below:
KCF keep change flip
so keep the first one the way it is
change the sign to multiplication from division
filp the 2nd fraction into a improper fraction
than multiply
so...
 3*10=30
10*5=50
so...
your answer is 30/50 or 3/5 that is in simplest form

Hope this helped


5 0
3 years ago
Determine the solution set of (2x - 5)2 = 11.
zhenek [66]
I think what you meant was

(2x - 5)² = 11 -- (1)

Square root both sides of (1), i.e.

√(2x - 5)² = ± √11 -- (2)

From (2), we have

2x - 5 = ± √11 -- (3)

By adding 5 to both sides in (3), we have

2x = 5 ± √11 -- (4)

Divide both sides of (4) by 2, and we obtain

x = (5 ± √11)/2 -- (5)

From (5), the solution set of (1) is

x = (5 + √11)/2, (5 - √11)/2 ...Ans.
8 0
3 years ago
Read 2 more answers
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