Question

The amount of a 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

Answer 1

@misty1212

Answer 2

hi!!

Answer 3

looks like it goes down by a factor of one half each time right?

Answer 4

since one half is the same as \(0.5\) pick that one

Answer 5

so D ?

Answer 6

yeah