Which statements are true about the ordered pair (−4, 0) and the system of equations?

{2x+y=−8x−y=−4

select each correct answer

the ordered pair (−4, 0) is a solution to the first equation because it makes the first equation true.

the ordered pair (−4, 0) is a solution to the second equation because it makes the second equation true.

the ordered pair (−4, 0) is not a solution to the system because it makes at least one of the equations false.

the ordered pair (−4, 0) is a solution to the system because it makes both equations true.

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation

step-by-step explanation: