Me for lots of points after this there are more questions urgent! f is inversely proportional to d squared when f=8 d=6 work out d (positive value rounded to 2 dp) when f=9

d ≈ 5.66

Step-by-step explanation:

given that F varies inversely with d squared, then the equation connecting them is

F = ← k is the constant of variation

to find k use the condition when F = 8, d = 6

k = Fd² = 8 × 36 = 288, hence

F =

when F = 9, then

9 = ← multiply both sides by d²

9d² = 288 ( divide both sides by 9 )

d² = 32 ( take the square root of both sides )

d = ± , hence

d ≈ 5.66 ← positive value only

yes

step-by-step explanation:

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hope this !