A stock of food is enough to fees 50 persons for 14 days. How many days will the foos last if 20 persons will be added?
1 answer:
You might be interested in
This question is asking "Where does cosine equal 
?"
Based on our unit circle values and the domain of the cos^{-1} function, we see that at 30 degrees, or
, cosine is equal to .
Based on our unit circle values and the domain of the cos^{-1} function, we see that at 30 degrees, or