SOLUTION: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation The given: T=2{pie}(square root) L/g Then I have to solve for L. I can't find explanations f

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation The given: T=2{pie}(square root) L/g Then I have to solve for L. I can't find explanations f      Log On

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Question 147969: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation
The given:
T=2{pie}(square root) L/g
Then I have to solve for L.
I can't find explanations for this lesson in the net.
Please help me.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
t+=+2%2API%2Asqrt%28L%2Fg%29, solve for L
Same thing, get L by itself on one side of the equal sign.
Square both sides to get rid of the radical
t%5E2+=+4%2API%5E2%2A%28L%2Fg%29
Divide thru by 4%2API%5E2
%28t%5E2%29%2F%284%2API%5E2%29+=+L%2Fg
Multiply thru by g
%28t%5E2%29%2Ag%2F%284%2API%5E2%29+=+L
L = %28t%5E2%29%2Ag%2F%284%2API%5E2%29
or, L = g%2A%28t%2F2PI%29%5E2, same thing different format
This is the formula for the length of a pendulum (L), with a period of t seconds.