Use the given transformation to evaluate the integral. 9 x − 3y 2x − y da, r where r is the parallelogram enclosed by the lines x − 3y = 0, x − 3y = 10, 2x − y = 9, and 2x − y = 10; u = x − 3y, v = 2x − y

where is the Jacobian matrix for the transformation,

We have

so that the integral is

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168