Answer:
451.5
Step-by-step explanation:
I'm rusted on the mathematics
 
        
             
        
        
        
<h2>
Answer:<em>
 </em><em><u>
w =(-40-√4320)/-34=(20+6√ 30 )/17= 3.110
</u></em></h2><h2><em><u>
 w =(-40+√4320)/-34=(20-6√ 30 )/17= -0.757</u></em></h2>
Step-by-step explanation:  The prime factorization of  4320   is
   2•2•2•2•2•3•3•3•5  
To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).
√ 4320   =  √ 2•2•2•2•2•3•3•3•5   =2•2•3•√ 30   =
                ±  12 • √ 30
  √ 30   , rounded to 4 decimal digits, is   5.4772
 So now we are looking at:
           w  =  ( -40 ± 12 •  5.477 ) / -34
Two real solutions:
 w =(-40+√4320)/-34=(20-6√ 30 )/17= -0.757
or:
 w =(-40-√4320)/-34=(20+6√ 30 )/17= 3.110
MY HEAD HURTS!
 
        
        
        
Answer:
   4/5 ft
Step-by-step explanation:
Assuming both boxes need to fit completely on the shelf, Ebony should make it as wide as the largest of the boxes.
In decimal, 4/5 = 0.80 and 3/4 = 0.75, so 4/5 > 3/4. 
The shelf should be 4/5 ft wide.
 
        
             
        
        
        
Answer:
Step-by-step  explanation:
explanation: