Answer:
2.4
Step-by-step explanation:
1/5=0.2
7.2/3=2.4
Persistent? Let's find the imaginary roots...
10v^2+4v+70=0
10v^2+4v=-70
v^2+2v/5=-7
v^2+2v/5+1/25=-7+1/25
(v+1/5)^2=-174/25
v+1/5=(+-)i(174)^(1/2)/5
v=(-1+i(174^.5)/5) and (-1-i(174^.5))/5
note the "i" in both factors...these are imaginary units and if you were to graph the original expression you would see that the curve never touches the x axis...
Multiply you first equation by 2 to get 4x + 10y = 22
Now the x terms can be eliminated and cancelled out using elimination.
4x + 10y = 22
4x + 3y = 1
To eliminate you need to "subtract", so you need to multiply one of the equations by -1.
4x + 10y = 22
-4x -3y = -1
------------------
0 + 7y = 21
y = 3
Now plug 3 into either one of the equations to get x.
Good luck I really hope you past it then
Answer:
The square is the next step
Step-by-step explanation: