Make a change of coordinates:


The Jacobian for this transformation is

and has a determinant of

Note that we need to use the Jacobian in the other direction; that is, we've computed

but we need the Jacobian determinant for the reverse transformation (from

to

. To do this, notice that

we need to take the reciprocal of the Jacobian above.
The integral then changes to

Answer:
D
Step-by-step explanation:
Given
- 8 < 4 ( add 8 to both sides )
< 12
Multiply both sides by 4 to clear the fraction
j < 48 → D
I think it’s 40
The width is 8
And the length is 5
8 x 5 is 40
4 x 3/5
4/1 x 3/5
4x3/5x1
12/5kg of corn a week
(12/5)/7
12/5(1/7)
12/5x7
12/35kg per day
Answer:
B.
Step-by-step explanation:
If you were to divide 4 by 7, you would get a decimal that would be rounded up to that value. 2/3 is roughly .66 and 2/5 is .4.