the mean of 6 10 11 x 12 square is 10 also why is 7 more than X find the value of x and y
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Given that
Set of numbers = 6 10 11 x 12 y^2
Given Mean = 10
Thus
Mean = 6 + 10 + 11 + x + 12 + y^2 / 6
So
39 + x + y^2 = 60
x + y^2 = 60 - 39 = 21
x + y^2 = 21
Putting y = x + 7
x + x^2 + 49 + 14 x = 21
15 x + x^2 + 28 = 0
x^2 + 15 x + 28 = 0
Set of numbers = 6 10 11 x 12 y^2
Given Mean = 10
Thus
Mean = 6 + 10 + 11 + x + 12 + y^2 / 6
So
39 + x + y^2 = 60
x + y^2 = 60 - 39 = 21
x + y^2 = 21
Putting y = x + 7
x + x^2 + 49 + 14 x = 21
15 x + x^2 + 28 = 0
x^2 + 15 x + 28 = 0
Golda:
Incomplete answer.
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