omgitsbailey omgitsbailey

15-01-2016
Mathematics

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if f(x) varies directly with x^2, and f(x)=75 when x=5, find the value of f(8)

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pasha582 pasha582

16-01-2016

f(x) = x² + c
f(5) = 25 + 50
f(8) = 64 + 50 = 114

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