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A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.





tutorsd6 : Please, share your Math problem...
student : he length of a diagonal of a rectangular box is 10. The box’s total surface area is 224. Find the sum of the lengths of all the edges. (Hint: What is [x + y + z]2?)
student : ???
student :
tutorsd6 : length of the diagonal = sq root of x^2 + y^2 + z^2
student : okay
tutorsd6 : i need another condition
tutorsd6 : coz here are 3 variables and 2 condition
tutorsd6 : surface area = 2 ( xy + yz + xz ) = 224
tutorsd6 : only 2 conditions are here
tutorsd6 : not possible to find x , y . z from these two condition
tutorsd6 : 100 = x^2 + y^2 + z^2
tutorsd6 : 224 = 2( xy + yz + xz )
tutorsd6 : please check the question once again
student : I copied and pasted
student : Theres a picture
student : what about x+y+z^2
tutorsd6 : i need to find the value of x , y , z
tutorsd6 : with these two condition , we are not at all able to find the values
tutorsd6 : for 3 variables , we need at least 3 condition
student : what about the hint
tutorsd6 : hint ? where is that ?
student : hint: what is (x+y+z)^2
tutorsd6 : to find ( x + y + z ) ^ 2 ....we need to get the value of x , y and z
student : Well
student : May I get help with another question since this is "impossible"
tutorsd6 : sorry , we have tried to give you the solution
tutorsd6 : is Typing . . .


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