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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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Jill calls a plumber to her house to fix the leaking faucets . The plumber charges a one-time fee of $50 plus an additional $35
Anton [14]

Answer:

independent=$50

dependent=$35X

Step-by-step explanation:

50 is the independent variable because it doesn't change.

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8 0
3 years ago
a. What is the area and circumference of circle P? Explain how you calculated this answer. b. If the arc measure of arc COD is 1
Vikki [24]

Answer:

a) 9*π or approx 28.26

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Step-by-step explanation:

As known for secants crossing each other inside the circle is coorect the following:

BR*RD=AR*RC

=> 3*RD=4*4.5

RD=6

The diameter of the circle with center P is BD=BR+RD=3+6=9

So the radius of the circle is D/2=9/2=4.5

As known the circumference of any circle can be calculated as

C=2*π*r  , where r is the circle's  radius

So C=2*4.5*π=9*π= approx   3.14*9=28.26

b) ∡CRB=∡ARD= (arcBC+arcAD),  where arcBC and arcAD smaller arcs

BD is the circle's  diameter, so arc BD=180°

So arcBC=180°-arcCOD=180°-100°=80°

Similarly arcBD=180°

arcAD=180°-arcBSA=180°-60°=120°

∡CRB= (80°+120°)/2=100°

5 0
3 years ago
How do I solve this
Kitty [74]
Hello,

x^2-2x-27=-5x+1\\

x^2-2x+5x-27-1=0\\

x^2+3x-28=0\\

x^2+7x-4x-28=0\\

x(x+7)-4(x+7)=0\\

(x+7)(x-4)=0\\

x=-7\ or\ x=4\\

8 0
4 years ago
Read 2 more answers
Classify the following triangle as acute
BaLLatris [955]
It is an acute triangle since all the sides are less than 90 degrees (it's also equilateral)
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3 years ago
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