If i looked at this correctly i believe the answer would be c
Answer:

Step-by-step explanation:
Let,
Now, us simplify the given differential equation and write it in terms of D,

or, 
or, 
We have our auxiliary equation:

or, 
or, 
Therefore our solution is,

and, 
Applying the boundary conditions, we get,


Solving them gives us,

Hence,

Answer:this is the work I’ve done so there
Answer:
D)
Step-by-step explanation:
Each longitude has a time difference of 4 minutes.
Convert 4 hours into minutes
4 hours * (60 minutes/1 hour) = 240 minutes
Divide 240 minutes by 4 to obtain the difference in longitude
240/4 = 60