For this case we must indicate the cosine of A, of the figure shown. By definition:

Substituting the values we have:

So, we have to:

Answer:
Option D
Answer:
In radical from 169/50 , 177/200
Step-by-step explanation:
Given:

Find:
Value of 
Computation:
Using quadratic formula:

Value of
3.38 , 0.885
In radical from 169/50 , 177/200
It will take 13.33 days to fill it to 6,000 gallons.
Answer:
it is B
Step-by-step explanation: