Answer:
699.7
Step-by-step explanation:
690.95 + 8.75 = 699.7
 
        
             
        
        
        
The solution is sometimes integers
        
             
        
        
        
Answer:
I have solved the question in the picture in two different ways : simplification and factorisation I hope you find it useful bye:) 
 
        
             
        
        
        
<h3>
Answer: The vertex is located at (2, 2)</h3>
====================================================
Explanation:
The general vertex form is 
y = a(x-h)^2 + k
When we compare the function your teacher gave you to this template, then we see that
The vertex is therefore (h,k) = (2,2)
The value of 'a' has no role in the vertex's location. This value determines how vertically stretched or compressed the parabola will be. Also, it determines if the parabola opens upward or downward (a > 0 for upward; a < 0 for downward).