The easiest way to find percent is to make the percent into a decimal and multiply. Move the decimal to places to the left to make 4.30, and multiplied by 90 equals 387, so 430 percent of 90 is 387.
 
        
             
        
        
        
Here are the coordinates :)
 
        
        
        
The domain is  , where n is an integer.
, where n is an integer.
- This is because cot x = 1/tan(x), and if tan x = 0, then the fraction is undefined.
The range is <u>all real numbers</u>.
 
        
             
        
        
        
Answer:
b
Step-by-step explanation: