Answer:
a) Angle XBC = 55 because XY is parallel with BD
b) As given, XB = XC, so that triangle XBC is the equilateral triangle. 
As XBC is equilateral triangle, angle XBC is equal to angle XCB 
Angle XBC = 55° => Angle XCB = 55°
In a triangle, the total value of three corners are equal to 180°
So that: Angle XBC + Angle XCB + Angle BXC = 180°
=> 55° + 55° + Angle BXC = 180 °
=> Angle BXC = 70°
 
        
                    
             
        
        
        
Answer:
x=-4 
Step-by-step explanation:
brainliest please
 
        
                    
             
        
        
        
For perfect solution we need to have :-  8 colves   in 500ml    solution
500   ml     has   8 cloves 
1 ml             has     8 / 500 cloves
100ml         has   8 / 500  * 100  =    8/5  = 1.6 cloves 
Raphael's mixture  
     900 ml  has 12 cloves 
       1 ml     has   12 / 900 cloves
    100 ml has   12 / 900 *  100   =    12 / 9  =   1.33 cloves
so concentration of garlic in 100 ml solution of Raphael's solution is less than Emily's solution    so it is not garlicky enough.     ( option B)
 
        
                    
             
        
        
        
The answers should be 1, 1, 0, 0