Question

ПОМОГИТЕ ПОЖАЛУЙСТА, СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

4*10^-1+7*10^-3+9*10^-4=4/10+7/10^3+9/10^4=4*10^3+7*10+9/10^4=
=4000+70+9/10000=4079/10000=0,4079