## Question

###### The length width %, and heignt h of a rectangular box (wth change with time: Ar certain instant the dimensions are =2m, W = Smh =1m, and and increasing at rate of 4 ns while h decreasing at a rate of 8 mrs: Die lengte breedte w, en hoogte van rerjcekige boks (met deksel) verander met tyd. Op sekere oomolik is die cimensies? 2 m, W = 5 n h =1m,en/en Loeneem teen tempovan m/s rerwyl afneem iccn rempovan nrs Suppose S the surtace area of the box At the given instant we have: Veroncerstel $ die bui

The length width %, and heignt h of a rectangular box (wth change with time: Ar certain instant the dimensions are =2m, W = Smh =1m, and and increasing at rate of 4 ns while h decreasing at a rate of 8 mrs: Die lengte breedte w, en hoogte van rerjcekige boks (met deksel) verander met tyd. Op sekere oomolik is die cimensies? 2 m, W = 5 n h =1m,en/en Loeneem teen tempovan m/s rerwyl afneem iccn rempovan nrs Suppose S the surtace area of the box At the given instant we have: Veroncerstel $ die buiteoppervlak van die boks Op die gegewe pcmhlik het ons: The rate at wnich the surface area ofthe box changing at that instant is Die tempo wraarteen de buiteoppervlak van die boks verander OpJ dlaardie oomblik is;

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