I need to use a technological resource (Wolfralpha, Geobrebra, Matlab, Graphmatica) to check the results please upload the screen shots

and check that the result is correct, because I think it is -314.2 in

Solution + The vallee provided in the Problem and made by cutting equal equance from each Comer 10 by 16 I heel of card board Determine for maximum Volume of box if 21 16 (10) for height of plate ( ) thicknell of Plate Volume V cal) = ( 1 6 - 2 7 1 ) ( 1 0 - 2 2 ) x 1 1 (160 - 32 20 - 20 7 + 4 70 4 71 4 10 - Size - 160 * for maximum Volumefor maximum Volume O 12 20 45 2 X 2 70 - 160 70 12 24 - 104 (20) - 160 0 2 - 10 - . B B 247 - 104 at 7 10 24x10 -104 d2 70 minimum at K - - 1. 3 3 then Hu Re- -1.33 is maximom .1. of M = - 133 - . maximum Volume|is atrc + 1.83 Vmax - 16 - 27) (10 - 2 x ) He Vmax - 16- 2X - 1. 33 10 - 2*-1033) x -1-33 Vmax # 18 . 66 X 12 . 66 X 1.33 Vmax - 3 4 . 2 ( in ) 3 ANS This is the maximum volume