Answer:
The answer is "38.130".
Step-by-step explanation:
Given:
Draw Y and X triangles on the underside, and F above them.
Because F is 
west from X, so FXY angle measurement 
from X because F is located 
east of north from Y, then
measure of angle 
the measure of angle 
Using Law of Sines: 
Cross Multiply:
We know that
the addition rule states that
P(A or B) = P(A) + P(B) − P(A and B)
in this problem
P(A)=0.72
P(B)=0.84
P(A and B)=0.64
so
P(A or B) = P(A) + P(B) − P(A and B)-----> 0.72+0.84-0.64
P(A or B) = 0.92
the answer is
0.92 (92%)
My best interpretation of the math here is that you're talking about the line integral,
I won't bother trying to decipher what look like multiple choice solutions.
By Green's theorem, the line integral above is equivalent to
where D is the set
Compute the double integral:
