Answer:
The model for the pollutant levels in the soil t years from the first measurement is:
Step-by-step explanation:
We have a first measurement of 65 parts per million (ppm) of pollutant.
We also know that the pollutant levels were growing exponentially at a rate of 4.5% a year.
We can model this as:
The value of Y0 is the first measurement, that correspond to t=0.
The ratio for the pollutant levels for two consecutive years is 1+0.045=1.045. This can be expressed as the division between Y(t+1) and Y(t), and gives us this equation:
Then, we have the model for the pollutant levels in the soil t years from the first measurement:
Sin^2(x), it’s a sin graph with all positive values which could indicate that it’s squared
Answer:
Step-by-step explanation:
B People: Voluntary
Oc
Answer:
B. Infinitely Many
Step-by-step explanation:
Step 1: Distribute
5x + 48 + 7x = 12x + 48
Step 2: Combine like terms
12x + 148 = 12x + 48
If the 2 lines are the same, which they are, they are the same lines. That means there are an infinite amount of solutions. If they had the same slope but different y-intercepts, there would be no solutions because the lines are parallel. Any other pair of equations would have 1 solution.
Answer:
x
=
6
,
−
4
Step-by-step explanation: