Question

I need help in bii

Answer 1

May I ask for your answer for bi?

Answer 2

P=5A - 40A^2 /n

Answer 3

Sorry, I should have posted it

Answer 4

what?u knw d answer?

Answer 5

That is the answer for (bi). I want to know how to do (bii). Does it matter if I know the answer?

Answer 6

one method is assume n = 32, then set P = 5 so ratio holds

solve for A
5A - 40A^2/32 = 5
5A^2/4 -5A +5 = 0
A^2 -4A +4 = 0
(A-2)^2 = 0
A = 2

A/n = 2/32 = 1/16

Answer 7

I think I got it . Thank you so much!