Question

-(0.4) во 2 степени :(1.4-1 3/7)

Answer 1

$-(0.4)^{2} : (1.4-1frac{3}{7})=5.6\ 1)1.4-1frac{3}{7} =1frac{4}{10}-1frac{3}{7}=frac{14}{10} -frac{10}{7} =frac{14*7-10*10}{10*7} =-frac{2}{70} =-frac{1}{35} \ 2)-(0.4)^{2} = -0.16\ 3)-frac{16}{100} : (-frac{1}{35} )=-frac{16}{100} *frac{35}{1} = frac{16*35}{100*1} =frac{560}{100} =5.6$

Answer 2

-0,16

Answer 3

Ответ: положительный