Question

p is inversely proportional to the square of (q + 4). p = 2 when q = 2. Find the value of p when q = –2

Answer 1

Answer:

p=18

Step-by-step explanation:

Given,

p∝1/(q+4)²

then,

p=k/(q+4)²------(i)

where k is constant

now,

A.T.Q

when q=2, p=2

substituting this values in eqn (i) we get

2=k/(2+4)²

=>k=2x36=72

now,

when q=-2

substituting value of q and k in eqn (i),we get

p=72/(-2+4)²

=>p=72/4

=>p=18