For this case, we must find the inverse of the following function:

We follow the steps below:
We exchange the variables:

We put the variable y on the left side of the equation:

We apply logarithm properties:

So:

Answer:

Option B
Answer:
C. 20 seconds
Step-by-step explanation:
We want to know when y=0
The first y is when it started and the second y=0 is when it stops
Looking at the graph y=0 at x=0 and y=0 at x=20
The fan started at time 0 and stopped at 20 seconds
7 / 7 = 1
3 + 1 = 4
4 + 3 and 1 / 3 = 7 and 1 / 3
Answer:
Step-by-step explanation:
uhm sure
I think it would be b or c