Answer:

Step-by-step explanation:
We have given differential equation 
We know that linear differential equation is given by 
On comparing with standard equation P = -2 and Q= 
Now integrating factor 

Now solution of differential equation is given by




R-4+3r-16=180
4r-20=180
4r=200
r=50
Angle D
r-4
50-4
46
Angle E
3r-16
3•50-16
150-16
134
I believe it is x=55. I could be wrong lol
Quotient is the answer of the division
0.4/0.01 = 40 x 10 = 4/0.1 = 40 x 10 = 40/1 = 40