plot(16.37+5.84*e^(-(T-1900)/165.1)&&21.37+3.08*e^(-(T-1948)/22.77),T=1948..2017)

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.