Which fractions are equivalent to the fraction below? Check all that apply. 5/7
2 answers:
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Assuming 
does not include the plane 
, we can parameterize the region in spherical coordinates using
where
and 
. We then have
Then the surface integral is equivalent to
We have
So the surface integral is equivalent to
where
.
where
Then the surface integral is equivalent to
We have
So the surface integral is equivalent to
where
answer
D 2
factor
factor the equation into (x + a) and (x + b) so that a + b = -2 and a * b = -8
the two numbers that meet these conditions are a = -4 and b = 2
find solutions
set both (x - 4) and (x + 2) equal to zero to find your solutions
x - 4 = 0
x = 4
x + 2 = 0
x = -2
add solutions
since the two solutions are x = 4 and x = -2, add them together to get your final answer
4 + (-2) = 2