TheGreatWulfbite TheGreatWulfbite

08-11-2018
Mathematics

contestada

I really need help with this, and I don't understand how to do this; not even with looking it up will help me.
I would really appreciate it. =w=

I really need help with this and I dont understand how to do this not even with looking it up will help me I would really appreciate it w class=

Respuesta :

gregmcginn gregmcginn

08-11-2018

Answer:

10.2 years

Step-by-step explanation:

it decays 4.9% per year.

figure out how many years it takes to decay 50% (half-life)

50/4.9 = 10.2

Answer Link

amychavez903 amychavez903

08-11-2018

it is 10.2 because....
..............

Answer Link

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