Answer:
l=0.1401P\\
w =0.2801P
where P = perimeter
Step-by-step explanation:
Given that a window is in the form of a rectangle surmounted by a semicircle. 
Perimeter of window =2l+\pid/2+w

Or 
To allow maximum light we must have maximum area
Area = area of rectangle + area of semi circle where rectangle width = diameter of semi circle


Hence we get maximum area when i derivative is 0
i.e. 

Dimensions can be 

 
        
             
        
        
        
Answer
Yes
both divide by 7
2/3
Step-by-step explanation:
Another example if it was 15/10
Then yes
Both divide by 5
so 
3/2 
 
        
                    
             
        
        
        
If the line is parallel, it has the same slope. So now just find the y intercept and put it into slope-intercept form
        
             
        
        
        
Answer:
The answer is   .
 .
Step-by-step explanation:
Given:
X/4 + 3/5x.
Now, to find the sum of the rational expressions.

So, to solve it by adding:



Therefore, the answer is   .
 .
 
        
             
        
        
        
Answer:
A. Similar; congruent angles
Step-by-step explanation: