this is for math please answer ASAP ONLY ANSWER NO EXPLANTION. THANK YOU

34. DETAILS MY NOTES | ASK YOUR TEACHER Integration by Substitution. The rate of growth of Grass carpr one of the most common type of sh, was modelled by the equation 5X+ 15 f(t)=2 x +6x+3 where t is measured in years and f(!:) in kilograms per year. Consider the integral /4 5X+15 dx 2 X2+6X+3 After substitution into u, the new integral can be written I: fidu an (a) The value ofA is 5 OX 05): Ox+3 02.5 00 05x+3 015 (b) The upper limit of integration b is 043 085 02 0-43 O4 033 0-19 19 Cost Function. Suppose the cost to manufacture a product is given by f(x.y} = MUG/2) The domain of f(x,y) is O the set of all points (x,y) in the xyplane where x 2 0 O the set of all points (X,y) in the xyplane where x a o and y a 0 O the set of all points (X,y) in the xy-plane O the set of all points (X,y) in the xyplane where y a o 0 none of the other answers 33. DETAILS Domain. The domain of 38 v x + 2 g (x ) = 13x2 - 52x + 39 can be written: O (-00, -2) U (-2, -3) U (-3,00) O [-2,1) U (1,3) U (3,00) O [-1,2) U (2,00) O [-co,-1) U (-1,00) O [-1,3) U (3,00 ) O None of the other answers O (-1,-3) U (-3,00 ) O (-00, 3) U (3, 2) U (2,00 )