Answer:
6
Step-by-step explanation: You can set up the equation: 
= 
You square both sides to cancel out the squares which leaves you with 
= n - 4. Then you just solve as normal which ends you up with an answer of 6. You can check this by plugging 6 back into the equation and see that you end up with 
on both sides.
Step-by-step explanation:
the gradient of the line = 2 units/ 3 units = 2/3
Answer:
Step-by-step explanation:
1+1=2
Hello,
-a²+12a=0
a²-12a=0
a(a-12)=0
a=0 or a-12=0
a=0 or a=12
The solution are: a=0 or a=12
