👤
Ruslik
a fost răspuns

Calculati:
a) (2,5×10⁻³)×(8,4×10⁴)
b) (4,5×10⁻²):(1,5×10⁻³)
c) (3,6×10⁵)×[(2,4)⁻¹×10⁻²]
d) (6,4×10⁻⁴):(1,6×10⁻³)

Răspuns :

Marcneufeld
A).(25/10*1/10^3)*(8,4*10000)=(5/2*1/10000)*84000=(1/2*1/200)*84000=1/400*84000=210

B). (45/10*1/10^2):(15/10*1/10^3)=(9/2*1/100):(3/2*1/1000)=9/200:3/2000=9/200*2000/3=3*10=30

Alte intrebari