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Lorico [155]
2 years ago
11

What is the best estimate of the correlation coefficient for the data set?

Mathematics
2 answers:
lubasha [3.4K]2 years ago
6 0

Answer:

it's 0.5

Step-by-step explanation:

maxonik [38]2 years ago
4 0

Answer:

Step-by-step explanation:

A is right

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Y = -5/3x + 3 <br> y= 1/3x - 3<br><br> And graphing it
tigry1 [53]

Answer:

Graph.

y=−1/3x+3

y

=

−

1

3

x

−

1

Step-by-step explanation:

8 0
2 years ago
Write
Schach [20]

Answer:

y+3=4(x-5)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-3)=4(x-5)

y+3=4(x-5)

5 0
3 years ago
Find the sum: -2.75+(-3.25)+5
dedylja [7]
The answer is -1. Hope this helps :)
7 0
2 years ago
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Find all points on the x-axis that are 14 units from the point (6,-7) All points on the x-axis that are 14 units from the point
Maksim231197 [3]

Answer: (6+7\sqrt{3},0)\text{ and }(6-7\sqrt{3},0) are the required points.

or  (18.124,0) and ( -6.124,0) are the required points.

Step-by-step explanation:

Let (x,0) be the point on x -axis that are 14 units from the point (6,-7) .

Then by distance formula , we have

\sqrt{(x-6)^2+(0-(-7))^2}=14\ \ \ [\ \because distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}]

Taking square on both the sides , we get

(x-6)^2+7^2=14^2\\\\\Rightarrow\ x^2+6^2-2(6)x+49=196\\\\\Rightarrow\ x^2+36-12x=147\\\\\Rightarrow\ x^2-12x=111\\\\\Rightarrow\ x^2-12x-111=0

Using quadratic formula : x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\dfrac{12\pm\sqrt{(-12)^2-4(1)(-111)}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm\sqrt{144+444}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm\sqrt{588}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm\sqrt{2^2\times7^2\times3}}{2}\\\\\Rightarrow\ x=\dfrac{12\pm14\sqrt{3}}{2}\\\\\Rightarrow\ x=6\pm7\sqrt{3}

so, (6+7\sqrt{3},0)\text{ and }(6-7\sqrt{3},0) are the required points.

since \sqrt{3}=1.732

so, (6+7(1.732),0)\text{ and }(6-7(1.732),0) are the required points.

i.e. (18.124,0) and ( -6.124,0) are the required points.

3 0
3 years ago
the market bought grapes for $0.87 a pound and sold them for $1.15 a pound what is the percent of increase rounded to the neares
kherson [118]
((1.15 - 0.87)/0.87)*100% = 32.2%
3 0
2 years ago
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