That's right, C(5730) = Co.e^(5730.t)

Also, because the half-life of carbon-14 is t=5730, you have:

C(5730) = 0.5 * Co

Using these two equations, it is not so hard to find t.

>>36047
Argh, I mistyped t for k...

That's right, C(5730) = Co.e^(5730.*k*)

Also, because the half-life of carbon-14 is t=5730, you have:

C(5730) = 0.5 * Co

Using these two equations, it is not so hard to find *k*.

>>36052
thanks!
what is the next step towards finding k?

>>36105
divide by C_0 and take the logarithm.

<math>C(5730) = 0.5 C_0 = C_0 e^{5730 k}</math>