Answer:
The length of the ladder  = 6.5077 ft
Step-by-step explanation:
Given A ladder leans against the side of a house
Given the angle of elevation of the ladder is 68° when the bottom of the ladder is 16 ft from the side of the house
Let 'C' be the point of observation.
Given CA= 16 ft
  From right angle triangle
      
      
      x = 16 × cos 68°
     x = 16 × 0.4067
     x = 6.5077
   x = 6.5 ft
The length of the ladder = 6.5 ft
 
        
             
        
        
        
Answer:
if three points are all located on the same line, then, the points are collier points.
Step-by-step explanation:
the if or p statement is called the hypothesis. 
the then or q statement is called the conclusion. 
 
        
             
        
        
        
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180=-2x+30
x=-75
i think this is what we’re supposed to do