Answer:

Step-by-step explanation:
Hi!
Lets call:
T = temprature of the object
T₀ = temperature of surroundings
t = time
The rate of change of T is its derivative with respecto to time. If T > T₀, the object looses heat, so T decreases. Then, being k > 0:

In this case T₀ = 70ºF and k = 0.05/min. Then the differential equation is:

i’m not from kentucky but it’s A
lmk if you need me to explain
Answer:
to do this we have to divide 43 by 83
0.51807228915
so the frequency is about 51.8%