Δ = 1 + 4*20 = 81
x' = (-1 + 9)/2 = 4
x'' = (-1 - 9)/2 = -5
4² + 4 - 20 = 0
(-5)² - 5 - 20 = 0
Ok !
Answer:
my answer is 2x+ 3y=22 because that the answer
Answer:
2✓10
Step-by-step explanation:
40 to the half power
can also be written as √40
so,√2×2×10=2√10
Answer:
The average speed is:
![\var{v}=75\: miles/h](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D75%5C%3A%20miles%2Fh)
Step-by-step explanation:
The average speed equation is given by:
![\var{v}=\frac{\Delta x}{\Delta t}](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D%5Cfrac%7B%5CDelta%20x%7D%7B%5CDelta%20t%7D)
Were:
- Δx is the displacement (225 miles)
- Δt is the change in time (3 hours)
Then we have:
![\var{v}=\frac{225}{3}](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D%5Cfrac%7B225%7D%7B3%7D)
![\var{v}=75\: miles/h](https://tex.z-dn.net/?f=%5Cvar%7Bv%7D%3D75%5C%3A%20miles%2Fh)
I hope it helps you!
Answer:
0,1,2
Step-by-step explanation:
(x+2) = 2((x+1)+(x)
x+2 = 2x+2+2x
x+2 = 4x+2
-x -x
2 = 3x + 2
-2 -2
0/3 = 3x/3
0 = x