Answer:
She spent 19.82 in all
Step-by-step explanation:
I added them
Answer:
x= -2
y=0
z= 1
Step-by-step explanation:
{-x+5y-10z=-8
2x-y+10z=6}
{2x-y+10z=6
-7x-3y-10y=4}
{-x+5y-10z=-8
2x-y+10z=6} = x+4y=-2
{2x-y+10z=6
-7x-3y-10y=4} = -5x-4y=10
{x+4y=-2
-5x-4y=-10}. =. y= 0 x= -2
substitute x and y in -x+5y-10z=-8
-(-2)+5(0)-10z=-8
solve for z
z= 1
(x,y,z) = (-2,0,1)
hope this helps
Answer:
A
Step-by-step explanation:
because im right
what makes it irrational is the

which does not change from one zero to the other. so if one root its irrational the other one also is. Answer A
Hello there,
I believe that your correct answer would be B.
Hope this helps.
~Jurgen