Question

T=2 pie square root L/G

L(feet) .5 1.0 1.5
T(sec.) .78 1.11 1.36

solve for g

Answer 1

just plug the numbers in, the first one is g=2(pi/.78)^2

Answer 2

if you mulitpy that it comes out to 2.4492
so do u round after that

Answer 3

Where did the ^2 come into play?

I would solve fo G and get g = 2 pi sqrt(L)/T
So g = 2 * pi * sqrt(L) / T