Answer:
A. The Value of y is six less than the value of x
Step-by-step explanation:
This is because the value of x is equal to y when six is added.
 
        
             
        
        
        
It would have to be letter D my guy, if you know what centuries and decades are this is easy
        
                    
             
        
        
        
Answer:
h = 1.403733341286
Step-by-step explanation:
17.
the triangle of sides ‘l’ and ‘l-h’ is a right angled triangle.
Then

Then

Then

18.
For l = 6  and  θ = 40 :

   = 6-6cos(40)
   = 1.403733341286
 
        
             
        
        
        
The square root of four is two. To find the square root of four you find out what number, when multiplied by itself will get four. In this case, 2×2=4.