Answer:
Line FN.
Step-by-step explanation:
A chord is a line whose endpoints both lie on the circle.
All the other lines' endpoints are on the circle.
In line FN, point N is on the circle but point F is not.
This makes line FN not a chord.
 
        
             
        
        
        
Answer:
A) 420 seconds = 7 minutes
B) 8 times
Step-by-step explanation:
A) After how many second would all three things happen together again?
Solution:
His clock ticked every 5 seconds , a tap was dripping every 7 seconds and     his pet dog snored every 12 seconds. It all happens simultaneously = 5*7*12=420 seconds
B) How many times would all three things happen together again between    midnight and one o'clock
Since all these events happen together after every 420 sec = 7 mins and there are 60 mins between midnight and 1 o'çlock , thus 60/7 = 8 times ....
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
crab crab crab crab crab
 
        
                    
             
        
        
        
Answer:
I can help with Q "4" as -
It uses triangle congruence test -  here we use - SAS, as 
one side is equal as it is given
both the  angles are 90 degree 
and they share a same side 
so -
8x = 6x + 5 
8x - 6x = 5
2x = 5 
x = 2.5 
RU = 6x+ 5 = 6 (2.5) + 5 = 20
( I am not so sure but I think this is the answer ) 
 
        
             
        
        
        
The <span>given the piecewise function is :
</span>
![f(x) = \[ \begin{cases} 
      2x & x \ \textless \  1 \\
      5 & x=1 \\
      x^2 & x\ \textgreater \ 1 
   \end{cases}
\]](https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5C%5B%20%5Cbegin%7Bcases%7D%20%0A%20%20%20%20%20%202x%20%26%20x%20%5C%20%5Ctextless%20%5C%20%201%20%5C%5C%0A%20%20%20%20%20%205%20%26%20x%3D1%20%5C%5C%0A%20%20%20%20%20%20x%5E2%20%26%20x%5C%20%5Ctextgreater%20%5C%201%20%0A%20%20%20%5Cend%7Bcases%7D%0A%5C%5D)
To find f(5) ⇒ substitute with x = 5 in the function → x²
∴ f(5) = 5² = 25
To find f(2) ⇒ substitute with x = 5 in the function → x²
∴ f(2) = 2² = 4
To find f(-2) ⇒ substitute with x = 5 in the function → 2x
∴ f(-2) = 2 * (-2) = -4
To find f(1) ⇒ substitute with x = 1 in the function → 5
∴ f(1) = 5
================================
So, the statements which are true:<span>

</span><span>
</span>