Answer:
B. juans solution is incorrect
Step-by-step explanation:
 
        
                    
             
        
        
        
<h2>It's <u>1849</u></h2>
I'll explain how I found it without actual multiplication, 

So, 

Hope this will help.... 
 
        
        
        
You can solve this by multiplying each numerator by the answer choices and trying to divide them. I can't get the fraction maker to work at the moment, so I'll write the calculations on a separate attachment.
As you can see, the only choice that works to eliminate both fractions is the fourth choice, 
50x.
 
        
        
        
Answer:
113.04
Step-by-step explanation:
formula for area is
pi times radius times radius
if the radius is 6, 
do 6 times 6=36
36 times 3.14=113.04
 
        
                    
             
        
        
        
As you can see in the given figure, there are two intersecting chords inside the circle.
Recall that the "Intersecting Chords Theorem" is given by

For the given case, we have
AE = 7
BE = 6
EC = 9
Let us substitute these values into the above equation and solve for DE

Therefore, the length of DE is 10.5 units.