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

y = (2/3)x + 6
because the slope stays the same because it is parallel and to get the y intercept you plug in -3 for x into the equation (2/3)x +? =4 and ?=6 so that gives you the equation y = (2/3)x + 6
Answer:
to sell 7000 it took 10 weeks
it took 3 weeks to sell 210 books
Step-by-step explanation:
5 and 6 because 5 1/4 = 5.25.
5.25 is less than 6, but greater than 5.
Answer: 2.50
Step-by-step explanation
we need to divide dollars / kilogram