Write a formula that describes the value of an initial investment of $4,000 that loses value at a rate of 10% per year, compounded continuously.

Answer:
see below
Step-by-step explanation:
The formula is the same whether the rate of change is positive or negative. Here, it is negative.
A = Pe^(rt)
for P = 4000, r = -0.10. Then you have ...
A = 4000e^(-0.10t)