Answer:
Is there a picture?
Step-by-step explanation:
Point form: (4,11)
equation form: x=4 y=11
By the law of cosines, the angle

satisfies

which reduces to

which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
If v is cut in half, then w is multiplied by (1/(1/2))^2 = 4.
When v=3, w=12.
Answer:
The value of n is 30.25.
Step-by-step explanation:
The given expression is
....(1)
The perfect square trinomial are defined as
.....(2)
On comparing (1) and (2), we get


The given expression is perfect square trinomial if




Therefore the value of n is 30.25.