snjuby8577 snjuby8577

22-11-2017
Mathematics

contestada

If d varies directly with t^2, and d=192 when t=8, find d when t=6

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zeeshanturi72 zeeshanturi72

24-11-2017

as d=k t^2 so putting d= 192 for t =8 we get k= 192/(8^2) =3 so k=3

thus d = 3t^2

now if t=6 the d = 3*(6^2) = 3*36

so d = 108

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