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) 180 90 45


Which exponential function best represents the relationship between f(t) and t?
f(t) = 0.5(180)t
f(t) = 180(0.25)t
f(t) = 180(0.5)t
f(t) = 0.5(50)t @confluxepic HELP WILLMEDAL

Answer 1

This halves in 1 hour

So : \(N = N_o \left( \dfrac{1}{2}\right)^t \implies N = 180 \left( \dfrac{1}{2}\right)^t \)

Answer 2

So is the ANWSER b?????

Answer 3

\[\frac{1}{2} = 0.5 \ne 0.25\]

Answer 4

So which ANWSER is it??????

Answer 5

u only want answer?

Answer 6

hello? do you have answer?