3 times I can tell by solving the problem on paper and clearly seeing how many times you have to regroup. Plus the answer is 487
Answer:
answer is b
Step-by-step explanation:
the dot filled in means that its equal to 12 and above
when it's not filled it means that its not equal to 12
Treat

as the boundary of the region

, where

is the part of the surface

bounded by

. We write

with

.
By Stoke's theorem, the line integral is equivalent to the surface integral over

of the curl of

. We have

so the line integral is equivalent to


where

is a vector-valued function that parameterizes

. In this case, we can take

with

and

. Then

and the integral becomes


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Answer:
B) 20
Step-by-step explanation:
2808 lb. / 140 lb. ≈ 20