Answer:
Step-by-step explanation:
Y=cos(x+r/2)
 
        
                    
             
        
        
        
No the don't add up to one eighty I'm pretty sure if not tell me
        
             
        
        
        
You might need to give out the choices, if there are any. thanks for asking.
        
                    
             
        
        
        
Answer:
80.56
Step-by-step explanation:
To find the rectangle area you just multiply its length by its width:
17 * 4 = 68
You have to sum two semicircles on top of that. Since it is 2 semicircles you can just calculate one circle. Using the circle area formula:   
Since the radius (r) is 2 and  is 3.14, you have the following equation:
 is 3.14, you have the following equation:
A = 3.14 * 2² ==>      A = 3.14 * 4   ==>   A = 12.56     <em>(A is Area)</em>
Sum the rectangle's area with the circle's area:
12.56 + 68 = 80.56
And vuoila! there's your answer.