Question

Buna!!!Cine poate sa-mi resolve si mie cat mai multe ex din fisa ?Ms!

e330628678ed21bc0cea36598f054def.pdf

Answer 1

Testul 3
1)b
2)a
3)P=6,4 dm
A=0,6 dm^2
4)V apa=200 cm^3
V total apa=220 cm^3
V 4 bile=V total apa-V apa=20 cm^3
V bila=5 cm^3=0,005 dm^3=0,00000 m^3
5)V=L*l*h=0,08 m^3=80 000cm^3
50 cm^3........curg in...........1 secunda
80 000 cm^3.......................x secunde            =>x=1 600 secunde
6) 1 ar=100 m^2                 5ari=500 m^2
81 dm^2=0,81 m^2
1345mm^2=0,001345m^2
Avem 500-0,81-0,001345=499,188655 m^2   
Varianta a)
7)a