Answer:
(a.) On line 4, Travis subtracted $188 from $180 and got a positive answer. The difference should be -$8.00.
(b.) <em>(work provided in picture)</em> To get his account back to 0, Travis needs to deposit $21.80 or more to avoid another overdraft fee.
Answer:
2 bears in 2020.
Step-by-step explanation:
We have been given that a new bear population that begins with 150 bears in 2000 decreases at a rate of 20% per year.
We will use exponential decay formula to solve our given problem as:
, where,
y = Final quantity,
a = Initial value,
r = Decay rate in decimal form,
x = Time
Upon substituting our given values in above formula, we will get:
, where x corresponds to year 2000.
To find the population in 2020, we will substitute in our equation as:
Therefore, 2 bears are there predicted to be in 2020.
Since population is decreasing so population is best described as exponential decay.