Answer:
12x + 2
Step-by-step explanation:
Let the number be represented by x.
Then five times the number = 5*x
Seven times the number = 7*x
Sum of 5 times the number minus -2 = ![\[5*x - (-2)\]](https://tex.z-dn.net/?f=%5C%5B5%2Ax%20-%20%28-2%29%5C%5D) =
 = ![\[5x +2\]](https://tex.z-dn.net/?f=%5C%5B5x%20%2B2%5C%5D)
Adding seven times the number to this expression yields, ![\[5x+2+7x\]](https://tex.z-dn.net/?f=%5C%5B5x%2B2%2B7x%5C%5D)
![\[= (5+7)x+2\]](https://tex.z-dn.net/?f=%5C%5B%3D%20%285%2B7%29x%2B2%5C%5D)
![\[= 12x+2\]](https://tex.z-dn.net/?f=%5C%5B%3D%2012x%2B2%5C%5D)
So the simplified expression corresponds to 12x + 2.
 
        
             
        
        
        
The standard form for the equation of a circle is :
<span><span><span> (x−h)^</span>2</span>+<span><span>(y−k)^</span>2</span>=<span>r2</span></span><span> ----------- EQ(1)
</span><span> where </span><span>handk</span><span> are the </span><span>x and y</span><span> coordinates of the center of the circle and </span>r<span> is the radius.
</span> The center of the circle is the midpoint of the diameter.
 So the midpoint of the diameter with endpoints at (−10,1)and(−8,5) is :
 ((−10+(−8))/2,(1+5)/2)=(−9,3)
 So the point (−9,3) is the center of the circle.
  Now, use the distance formula to find the radius of the circle:
  r^2=(−10−(−9))^2+(1−3)^2=1+4=5
 ⇒r=√5
 Subtituting h=−9, k=3 and r=√5 into EQ(1) gives :
 (x+9)^2+(y−3)^2=5
 
        
             
        
        
        
Answer:
-5 ≤ y ≤ 5
Step-by-step explanation:
maximum y value is 5
minimum y value is -5
-5 ≤ y ≤ 5
 
        
             
        
        
        
Answer:
X is just the variable or missing edge, side, angle .etc that you are looking for
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
A weak negative correlation
Step-by-step explanation:

where, 



This represents a weak negative correlation