The answer is 3km as there is 9 secs between it and distance = time/3 and 9/3 =3 so distance =3
        
             
        
        
        
By cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, an open box may be made. If the cardboard is 12 in. long and 10 in. wide, find the dimensions of the box that will yield the maximum volume. (Round your answers to two decimal places.)
in (smallest value)
in
in (largest value)
        
             
        
        
        
12 5/10 вecaυѕe ιғ yoυ тυrn тнe ғracтιon вacĸ тo a decιмal ιт woυld вe 5.0 dιvιded вy 10 woυld eqυal 12. 5
        
                    
             
        
        
        
All you have to do here is combine like terms. 
5x + 9x = 14x
.5 - 2.5 = -2
14x - 2
        
             
        
        
        
Answer:
D
Step-by-step explanation: