Answer:
110
Step-by-step explanation:
you place 30 in the place of X, and it becomes 4×30-10. in PEMDAS, multiplication goes first and 4×30=120. 120-10=110
 
        
             
        
        
        
Kiddo, you didn't draw the model that why
        
                    
             
        
        
        
Answer:
See below
Step-by-step explanation:
I assume you mean 
The equation is already in vertex form  where
 where  affects how "fat" or "skinny" the parabola is and
 affects how "fat" or "skinny" the parabola is and  is the vertex. Therefore, the vertex is
 is the vertex. Therefore, the vertex is  .
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The axis of symmetry is a line where the parabola is cut into two congruent halves. This is defined as  for a parabola with a vertical axis. Hence, the axis of symmetry is
 for a parabola with a vertical axis. Hence, the axis of symmetry is  .
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The minimum value is the smallest value in the range of the function. In the case of a parabola, the y-coordinate of the vertex is the minimum value. Therefore, the minimum value is  .
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The interval where the function is decreasing is 
The interval where the function is increasing is  
 
 
        
             
        
        
        
7.32a + 2.1(2.7 -18a)
7.32a + 5.67 - 37.8a (multiply 2.1 to 2.7 and 18a)
5.67 - 30.48a (combine 7.32a and -37.8a since they are like terms)
        
             
        
        
        
Answer:
ok.
Step-by-step explanation:
y=-1/1x+4. hope this helped :))