Question

Решите системы неравенств

Answer 1

1124-1)
1125-2)
1126-2)
1127-1)
надеюсь,правильно.

Answer 2

$left { {{x+1,8 leq 0} atop {x+0.5 leq -0.5}} right. left { {{x leq -1.8} atop {x leq -1}} right. left { {{++[-1.8]------ textgreater x} atop {++++++++[-1]- textgreater x}} right.$
$x$∈$(-infty;-1.8]$
Ответ: 1.

$left { {{x+3 geq -2} atop {x+1.1 geq 0}} right. left { {{x geq -5} atop {x geq -1.1}} right. left { {{-[-5]++++++++ textgreater x} atop {------[-1,1]++ textgreater x}} right.$
$x$∈$[-1.1;+infty)$
Ответ: 2.

$left { {{x textless 9} atop {8-x textgreater 0}} right. left { {{x textless 9} atop {x textless 8}} right. left { {{+++++++(9)-- textgreater x} atop {+++(8)------ textgreater x}} right.$
$x$∈$(-infty;8)$
Ответ: 2.

$left { {{x textless 3} atop {4-x textgreater 0}} right. left { {{x textless 3} atop {x textless 4}} right. left { {{++++(3)-------- textgreater x} atop {++++++++++(4)-- textgreater x}} right.$
$x$∈$(-infty;3)$
Ответ: 3.