Question

Efectuati (0.34+0.66)^2 x (0.09^2+0.05^2) x 5000.
^2 inseamna la puterea a doua,
RAPID VA ROG!!

Answer 1

(0,34+0,66)²×(0,09²+0,05²)×5000

1²×[(9/100)²+(1/20)²]×5000

[(9/100)²+1/20²]×5000

5000×(9/100)²+5000/20²

5000×81/10000+5000/20²

81/2+5000/40

81/2+25/2

(81+25)/2

106/2

53