The value of x is 84 degrees
        
                    
             
        
        
        
The acceleration is given by the slope of the line. This line passes through the points (0, 2) and (3, 5), so it has slope

which means the acceleration over this 3 second interval is 1 m/s^2.
 
        
                    
             
        
        
        
Answer:
150 feet
Step-by-step explanation:
the ratio of her shadow to her height
2/5=60/150
60/150=2/5
i hope it is right
 
        
                    
             
        
        
        
i) first you combine the like terms; 3x² and x², then 4x and -8x, then -7n and -1.
Then you would get 4x²-4x-8.
You then cannot simplify further. so your answer would be 4x²-4x-8.