F is inversely proportional to d^2. When F = 15, d = 4
Work out d (positive value rounded to 2 DP) when F = 6

d ≈ 6.32

Step-by-step explanation:

Given F is inversely proportional to d² then the equation relating them is

F = ← k is the constant of proportion

To find k use the condition when F = 15, d = 4 , then

15 = = ( multiply both sides by 16 )

240 = k

F = ← equation of proportion

When F = 6 , then

6 = ( multiply both sides by d² )

6d² = 240 ( divide both sides by 6 )

d² = 40 ( take positive square root of both sides )

d = ≈ 6.32 ( to 2 dec. places )

a

explanation:

you might have to contact customer support. if you have it on your iphone you just got into your settings> subscriptions> cancel

step-by-step explanation: