a fost răspuns

Rezolvati urmatoarele ecuatii,unde x ɛ R:a)10x^2=125/2;b)24x^2=147/8;c)15x^2=108/5;d)42x^2=150/7

Răspuns :

Valericagutu06ask

a) 10x² = 125/2 <=> 10x² = 62,5 <=> x² = 62,5/10 <=> x² = 6,25 <=> x = √6,25 <=> x = 2,5

b) 24x² = 147/8 <=> x² = 147/8 ÷ 24 <=> x² = 0,765 <=> x = √0,765 <=> x = 0,874

c) 15x² = 108/5 <=> 15x² = 21,6 <=>x² = 21,6/15 <=> x² = 1,44 <=> x = √1,44 <=> x = 1,2

d) 42x² = 150/7 <=> 42x² = 21,42 <=> x² = 0,51 <=> x = √0,51 <=> x = 0,714

Ask Alte intrebari