Answer: π / 4
Step-by-step explanation:
Area of a circle = π x r^2
= π x 0.5^2
= π / 4
When you divide a negative and a positive, you don't have to worry about the negative that much. Just divide like normal, and then add the negative at the end. However, if you divide a negative by a negative, it's double negative, and therefore positive. So in the case of -19 / 13, the answer would be negative.
Hope this helps! :)
2/5+-1/3 please excuse my sloppy writing
Answer: 
Step-by-step explanation:
Given
We can write it as
Express x in terms of y
Replace y be x to get the inverse
To prove, it is inverse of f(x). 
So, they are inverse of each other.
Answer:
A total of 360 residents left Planet X in the past 3 years.
Step-by-step explanation:
120 are the residents per year and the 3 represents the years so when you multiply them it would make how many residents that left Planet X in 3 years.
