Question 1 25 pts Compute 1 5 ( + 2 xy + y' - 3x - 4y+ 4) doxdy. O 395 12 1106 3 0 2 O 1022 3 Question 2 25 pts Compute Is , ( + sxyty' - x + 4y- 5) dady. O 652 3 O 239 24 0 5 O 1072 3Question 3 25 pts The average value of f(x, y) over the rectangular region defined by a ) dydx. O True O False Question 4 25 pts If f(x, y) 2 0, then ( 1, f(x. >) dx dy calculates the volume of the solid under the graph of f(x, y) over the region R. O True O False