+0  
 
0
48
3
avatar+6 

HELPPP

 

 Dec 23, 2018
 #3
avatar+94976 
+2

dimensions    4, x+1,  x+11    all in cm        V=924cm^3

so

 

\(4(x+1)(x+11)=924\\ (x+1)(x+11)=231\\ x^2+12x+11=231\\ x^2+12x-220=0\\ \)

The rest is pretty much already done.    laugh

 Dec 24, 2018

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