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05.05.2020 • 

Mathematics

The amount of radioactive material changes with time. The table below shows the amount of radioactive material f(t) left after time t:
t(hours) 0 1 2
f(t) 100 50 25
Which exponential function best represents the relationship between f(t) and t?
f(t)= 0.5(100)^t

f(t)= 100(0.25)^t

f(t)=0.25(50)^t

f(t)= 100(0.5)^t

Ответ:

hamzzaqasim44

07.03.2021

Mathematics

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X=3

Step-by-step explanation:

       0.05(4x) + 0.1x = 0.90

           0.2x + 0.1x = 0.90

                 0.3x = 0.90

                      x = 3

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