Answer:
...
Step-by-step explanation:
To justify the yearly membership, you want to pay at least the same amount as a no-membership purchase, otherwise you would be losing money by purchasing a yearly membership. So set the no-membership cost equal to the yearly membership cost and solve.
no-membership costs $2 per day for swimming and $5 per day for aerobic, in other words, $7 per day. So if we let d = number of days, our cost can be calculated by "7d"
a yearly membership costs $200 plus $3 per day, or in other words, "200 + 3d"
Set them equal to each other and solve:
7d = 200 + 3d
4d = 200
d = 50
So you would need to attend the classes for at least 50 days to justify a yearly membership. I hope that helps!
Given:
The rational function is:
To find:
The points on the graph at the function value 
.
Solution:
We have,
Substituting , we get
Moving all the terms on one side, we get
Splitting the middle term, we get
Using zero product property, we get
Therefore, the required values are 
.
All you need to do is find s, and get it by itself.
So, divide 9 by 252.
252/9= 28
s= 28
I hope this helps!
~kaikers
