Answer:
821.94
Step-by-step explanation:
Let

be an arbitrary closed region with boundary the surface

. By the divergence theorem,

We have

so that the flux satisfies

We're assuming

is a closed region, and the integral above is its volume, which must be positive. This means we must have

.
Answer:
(A) 1(B) 3 (C) 2(D) 4
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Answer:
a=7
Step-by-step explanation:
6a-42=-7a+49
(add 7a to 6a)
13a-42=49
(add 42 to 49)
13a=91
(divide 91 by 13)
a=7