Question

HELP! COROANA PENTRU REZILVARE COMPLETA PE FOAIE
(rezultatele sunt:a)x=125;b)x=4;c)x=20;d)x=22/3)
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Answer 1

Formula mediei geometrice - mg = V(x*y)

a) V(x*5) = 25 ridici toata ecuatia la puterea 2,

V(x*5)² = 25²

x*5 = 625

x = 625/5

x= 125

b) V(x*9) = 6 ridici totul la puterea a 2

x*9 = 26

x = 36/9

x = 4

c) 3 intregi 1/5 = 16/5

V(x*16/5) = 8 |²

x*16/5 = 64

x = 64*5/16

x= 4*5 = 20

d) 3,(6) = (36-3)/9 = 33/9 = 11/3

1,8(3) = (183-18)/90 = 165/90 = 11/6

V(x*11/6) = 11/3 |²

x*11/6 = 121/9

x = 121/9 * 6/11

x = 11*2/3 = 22/3