Buon pomeriggio mi sapete dire come si fa?

Question

[attach]77558[/attach]

LucianoP · Accepted Answer

[attach]129717[/attach] Α = 2·pi·x·(x + h) 4500 = pi·x^2·h----> h = 4500/(pi·x^2) Α = 2·pi·x·(x + 4500/(pi·x^2)) Α = 2·pi·x^2 + 9000/x----> Α = 2·(pi·x^3 + 4500)/x Α = (2·pi·x^3 + 9000)/x

nik · Answer

[attach]129792[/attach] a) V(h,x) = pi*x²*h b) At(h,x) = 2pi*x² + 2pi*x*h c) 4500*10^-6 = V = pi*x²*h ---> h(cm) = 4500/(pi*x²) d) At(x,h) = 2pi*x² + 2pi*x*4500/(pi*x²) = 2pi*x² + 2pi*4500*x/(pi*x²) = (2pi²*x^4 +9000*pi*x)/(pi*x²) = (2pi*x³+ 9000)/x = A(x) cvd.

remanzini_rinaldo · Answer

[attach]129802[/attach] a) volume V = π*x^2*h b) superficie A = 2*π*x*(x+h) c)+ d)+e) [attach]129809[/attach] [attach]129808[/attach]

Buon pomeriggio mi sapete dire come si fa?

Domande