Answer:
Primera pregunta: es el Jueves 21 de mayo
Segunda pregunta: Viajaría el 11 de abril
40 días en total si se cuenta desde el momento que tomo el vuelo.
Step-by-step explanation:
Answer:
The answer is 21.4
Step-by-step explanation:

Answer:
and 
Step-by-step explanation:
To find the max points we need to take the derivative of the function and then find the critical values.
First we take the derivative:

Now we need to find when f'(x)=0 to find the critical values.

The critical values will be
for any integer n
between 0 and 2 pi, the critical values will be

We can determine if these are minimums or maximums by using the second derivative test.
So we need to take the second derivative;

We need to see if the second derivative is positive or negative to determine if it is a max or min.

Since the second derivative is negative at
and 
we know both of those are the x-values of maximums.
It’s ok 4.9 hope that helped