\[\boxed{\mathbf{878\ (878)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\(а)\ \)
\[- 3,8;\ - 3,7;\ - 3,6;\ - 3,5;\ - 3,4;\ - 3,3;\ - 3,2;\ - 3,1.\]
\(б)\ \)
\[- 10,8;\ - 10,7;\ - 10,6;\ - 10,5;\ - 10,4;\ - 10,3;\ - 10,2;\ - 10,1;\ - 10,0.\]