mattskinner
mattskinner mattskinner
  • 12-04-2018
  • Mathematics
contestada

What the answer plz help

What the answer plz help class=

Respuesta :

Аноним Аноним
  • 12-04-2018
20 = 40e^-0.1446t
e^-0.1446t = 0.5

t  = ln 0.5 / -0.1446
t =  4.8 days

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