17,19,21,23,25,27,29 with work please

[0. 4 ]; 4 subintervals r square 17 . 1( x ) of the 18. f(x) = 12 + 2; [0, 6]: 6 subintervals 19. f(x) = 4x - x2; [0, 4]; 4 subintervals 20. f(x) = x'; [0, 3]; 3 subintervals Exercises 21-28, find the definite integral by computing an area. may help to look at a graph of the function.) 21. 5 dx 22. 6 dx .5 23. 3x dx 24. 0.5x dx 25 . [ ( x + 3 ) dx 26. (3x - 2) dx 6 27 V4 - x2 dx 28. V 36 - x2 dx can be shown that the area enclosed between the x-axis and one arch the sine curve is 2. Use this fact in Exercises 29-38 to compute the elinite integral. (It may help to look at a graph of the function.) sin x dx 30. ( sin x + 2) dx 31 17+ 2