Tan^-1 (27/48)
x ≈ 29.36°
hope this helps!
Answer
the second one, and 5th one
Step-by-step explanation:
because it is liquid
we have

we know that

therefore
<u>the answer is</u>
The expression equivalent is 
It shows that six years pasted between 2007 and 2013 and it increased by 20,000 so add that to the population at the time the answer is 158000