Patru elevi au măsurat aria unui caiet şi au găsit valorile: A 1 =14,50 cm 2 , A 2 = 14,10 cm 2 , A 3= 14,40 cm 2 şi A 4 = 14,60 cm 2 . Media aritmetică a măsurătorilor este…………………………
Cea mai mică eroare de măsurare faţă de valoarea medie o are elevul…………….

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Which is a substance that can be separated by physical means and is not the same throughout

Nthe 19th century, women were expected to conform to a certain role that entailed a. gaining domestic skills and establishing a career b. going to college and getting married c. getting married and having children d. graduating from college and being a housewife