Hi,

I hope someone can help. I'm trying to solve11b and 11c:

For 11b- I don't understand why the solution is only0 < 154.75 Celsius. I see other parts of this graph where v > 0, namely on the left-hand side of the y-axis, so I'm curious why this is not included in the solution. For example, I seev > 0, whenx < -6.676and in between-2.42 < x < 3.095- this is without the 50 Celsius conversion. Can someone please provide clarification on this?

For 11c- I just don't know where to start in order to find this solution, so guidance would be appreciated. The solution is 133.78 degrees celsius to 139.56 degrees celsius.

Sincerely,

Olivia