The following function gives the total cost of a water bill dependent on the amount of time (t) in hours that the water runs.
C(t) = 4(0.21)^t
A. What does C(t) represent in the context of this problem?
B. What does t = 5 represent in the context of this problem?
C. What does C (5) mean in the context of this problem?
D. Does finding C (-2) make sense in the context of this problem?
A. In the context of this problem, C(t) represents the total cost of the water bill.
B. In the context of this problem, t = 5 represents the amount of time (in hours) that the water has been running.
C. In the context of this problem, C(5) means finding the total cost of the water bill after running for 5 hours.
D. No, finding C(-2) does not make sense in the context of this problem because the amount of time cannot be negative.