Answer:
128mm
Step-by-step explanation:
Given


Required
Determine the length of the openings of the pipe
To do this, we simply add 40mm to the length of the pipe.
This gives:


<em>Hence, the opening must be 128mm</em>
I MIGHT JOIN JUST NOT NOW
Step-by-step explanation:
gotta do hw >:(
also how old are you cuz im 13 and don't wanna talk to an old man
Answer:
=13 era muy fácil yo lo hice mentalmente
Can u go closer I can’t see
I can't help u with this but I can give the formula tn=t1+(n-1)+d