Answer:

Step-by-step explanation:
The magnitude of 3D vector
can be given by the following:

Plugging in given values, we have:
.
For the first triangle add 45 and 95 and subtract it from 180
I think it might be f^-1 (x) = x/2 - 3/2
I hope this helps!
Answer:
Wheres the question
Step-by-step explanation:
Substitue y=3x into the other equation to get 3x=-x+4. Solve this to get 4x=4 therefore x=1.
knowing this, y=3