Question

$\sqrt{0.87 \times 49 + 0.82 \times 49}$
памагите пажалуста​

Answer 1

√(0.87*49 + 0.82*49) = √49*(0.82 + 0.87) = √(49*1.69) = √(7²*1.3²) = 7*1.3 = 9.1