A farmer wants to enclose a rectangular area with fencing an…

A farmer wants to enclose a rectangular area with fencing and then divide it into three pens with fencing parallel to one side of the rectangle as shown (picture not drawn to scale). The farmer has  feet of fencing. The goal of this problem is to find the dimensions that will result in the largest possible total area enclosed by the pen. If is the length of the pen, and is the width of the pen, with the interior fences parallel to the width side, which of the following functions represents the area of this pen as a function of ?

Based on your knowledge of the directing group effects, indi…

Based on your knowledge of the directing group effects, indicate whether the substituent ortho-, meta-, and/or or para- directing. Mark all answers that are correct. Note that this substituent is one of the substituents shown in question 2 above. Click to Show Image Description A six-membered benzene ring containing three alternating double bonds is single bonded to a selenium atom labeled Se. The selenium atom is single bonded to a CH₃ group. No lone pairs are shown.