+20 How to write an equation?
Every floor of a building must be conneceted to the basement by a wire. Each floor gets its own indivigual wire. Given any constant hight between floors (h), and x number of floors (f), how do I write an equation that will give me the proper ammount of wire? Thanks!
+118696 Hi Parke,
Welcome to the forum :)
The first wire is h long, the second is 2h long the last one is f h long
h, 2h, 3h, ....... f h
This is an arithmetic progression. The first term is h, the common diff is h the last term is f h
The sum of all these terms is given by the forumula
sn=n2(a+L) n=f, a=h, L=f h
Sf=f2(h+f∗h)Sf=f∗h2∗(1+f)
+118696 Hi Parke,
Welcome to the forum :)
The first wire is h long, the second is 2h long the last one is f h long
h, 2h, 3h, ....... f h
This is an arithmetic progression. The first term is h, the common diff is h the last term is f h
The sum of all these terms is given by the forumula
sn=n2(a+L) n=f, a=h, L=f h
Sf=f2(h+f∗h)Sf=f∗h2∗(1+f)
