Answer:
61.6666666667 =61.67
Step-by-step explanation:
 
        
             
        
        
        
Answer:
the base is 10 and the height is 6.4
 
        
             
        
        
        
Ok
Perimeter=38cm
Area=88cm
2 numbers that multiply to 88  
4 numbers that add up to 38
Length=11
Width= 8
        
             
        
        
        
"a" and integer is a whole number not a fraction or a decimal
        
                    
             
        
        
        
Answer:
y = (x - 2)² + 9
Step-by-step explanation:
To obtain the equation in vertex form use the method of completing the square.
Add/ subtract ( half the coefficient of the x- term)² to x² - 4x
y = x² + 2(- 2)x + 4 - 4 + 13
   = (x - 2)² + 9 ← in vertex form