2x^2+2y^2-4x+12y+6=0
you want it in the form
(x-a)^2+(y-b)^2=r^2 where (a,b) is the center and r is the radius hence the name standard center radius form.
dividing by 2 and rearranging
x^2-2x+y^2+6y=-3
by completing the square
x^2-2x+1+y^2+6y+9=-3+9+1
(x-1)^2+(y+3)^2=7
this is the standard radius center form (part b)
to get part a we multipy the equation by 2 to get
2(x-1)^2+2(y+3)^2=14 which is choice (2)
In order to find the answer to this, we need to combine the number of Fantasy books with the number of Adventure books. Directions/answer below:
10 (Fantasy) + (combined) 8 (Adventure) = 18.
Now, you subtract that number by the number of History books. Continuing:
18 - 6 = 12.
Your answer is 12.
If I confused something and got it wrong, please let me know, but I'm pretty sure this is the answer! Thank you!
Answer:
The answer is the forth one , Y-8+2⩽-2+2
Answer:
The answer is false
Step-by-step explanation:
Unlike any symmetric distribution, the chi-square distribution is non-symmetric. Accordingly, this statement cannot be trusted—b.
As chi-square does not depend on all degrees of freedom, it is a non-symmetric distribution that excludes symmetric data.
