Simplifying √196 before doing the multiplication:
( √196 ÷ 7 ) × √48
= ( (√4 × √49) ÷ 7 ) × √48
= ( (2 × 7) ÷ 7 ) × √48
= 2√48
Simplifying √48:
= 2 × √16 × √3
= 2 × 4 × √3
= 8√3
which is irrational because it's a square root
        
             
        
        
        
Answer:
15
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
   see attached
Step-by-step explanation:
The equation is in the form ...
   4p(y -k) = (x -h)^2 . . . . . (h, k) is the vertex; p is the focus-vertex distance
Comparing this to your equation, we see ...
   p = 4, (h, k) = (3, 4)
p > 0, so the parabola opens upward. The vertex is on the axis of symmetry. That axis has the equation x=x-coordinate of vertex. This tells you ...
   vertex: (3, 4)
   axis of symmetry: x = 3
   focus: (3, 8) . . . . . 4 units up from vertex
   directrix: y = 0 . . . horizontal line 4 units down from vertex