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It is D, that is because A - C are not terminating decimals therefore only leaving D
Notice that the triangle is a right triangle, because of the right angle. By the Pythagorean Theorem,

. Then

, d. 8 m
We want to find a scalar function

such that

.
So we need to have

Integrating both sides with respect to

gives

Differentiating with respect to

gives



So we find that

By the fundamental theorem of calculus, we then know the line integral depends only on the values of

at the endpoints of the path. Therefore
Answer:
36
Step-by-step explanation:
All you gotta do is 9x4 or 9+9+9+9=36