An ellipse has foci f1(9, 0) and f2(11, 6), and the point (1, 6) is on the ellipse. identify the constant sum for the ellipse.

The constant sum is the summation of the two distances as follows:

constant sum = D1 + D2 = 10 + 10 = 20

so 20 is your answer

Step-by-step explanation:

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answer: for each 3 girls there is 2 boys . 3: 2

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