Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x, y) = x3y + 24x2 8y local maximum value(s) DNE W local minimum value(s) DNE W saddle point(s) (x, y, f) = You may need to use the appropriate appendix table or technology to answer this question. For a t distribution with 19 degrees of freedom, find the area, or probability, in each region. (Round your answers to three decimal places.) (a) to the right of 1.729 .025 ;( (b) to the left of 2.093 .025 3' (c) to the left of 2.539 (d) to the right of 1.328 (e) between 1.729 and 1.729 .9000 0/ (f) between 2.539 and 2.539 _x