I think what you are trying to ask is what number is divisible by three and nine
   multiply 3 and 9 to get your answer
        = 27
  27 because it can be divided by 3 and = 9 and can be divided by 9 and = 3
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Elapsed time from 105pm to 440am is 15 hours and 35 minutes.
        
                    
             
        
        
        
Answer:
All the populations in an ecosystem form the community.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
10
Step-by-step explanation:
2x - 3y = 24 ------ (1)
3x + 4y = 2 ------ (2)
(1) × 4,
8x - 12y = 96 ------ (3)
(2) × 3,
9x + 12y = 6 ------ (4) 
(3) + (4) 
17x = 96 + 6
 = 102
x = 102 ÷ 17 
 = 6
Sub x = 6 into (2),
3(6) + 4y = 2
18 + 4y = 2 
4y = 2 - 18 
 = -16 
y = -16 ÷ 4
 = -4
Therefore, 
x - y = 6 - (-4)
 = 6 + 4 
 = 10
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Answer:
B
Step-by-step explanation:
From any point (x, y) on the parabola the focus and directrix are equidistant.
Using the distance formula
 = | y - 6 |
 = | y - 6 |
Squaring both sides
(x + 2)² + (y - 4)² = (y - 6)² ←  distributing
x² + 4x + 4 + y² - 8y + 16 = y² - 12y + 36 ( subtract y² - 12y + 36 from both sides )
x² + 4x + 4 + 4y - 20 = 0 ( subtract x² + 4x + 4 from both sides )
4y - 20 = - x² - 4x - 4 ( add 20 to both sides )
4y = - x² - 4x + 16 ( divide through by 4 )
y = -  x² - x + 4, that is
 x² - x + 4, that is
f(x) = -  x² - x + 4 → B
 x² - x + 4 → B