Question

Va rog frumossss coroana

Answer 1

A) [(11,56-2x3,4x1,3+1,69):3,5+0,7x8]x0,7x0, 008:2=[(11,56-8,84+1,69):3,5+5,6]x0,7x0,008:2=(4, 41:3,5+5,6)x0,7x0,008:2=(1, 26+5,6)x0,7x0,008:2=6,86x0,7x0,008:2=4,802x0,008:2=0,038416:2=0,019208

(a-b)la patrat=a patrat-2ab+bpatrat

B) 7x{8+9x[0,5+0,2x(3,5+1,5)]}=7x[8+9x(0,5+0,2x5)]=7x[8+9x(0,5+1)]=7x(8+9x1,5)=7x(8+ 13,5)=7x21, 5=150,5

C)(0,03:0,01-2)la puterea 100:0,25=(3-2)la puterea 100:0,25=1:0,25=4