
Квадратные неравенства
Authored by Никита Зайцев
Mathematics
8th - 12th Grade
Used 193+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Выберите верный промежуток
6x2 > 5x - 1
(0,5 ; 0,(3))
( - ∞; 0,(3)) u ( 0,5 ; + ∞ )
[0,(3) ; 0,5 ]
( - ∞; 0,(3) ] u [ 0,5 ; + ∞ )
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Выберите верный промежуток
(2x + 1)( 3x + 2) ≤ 0
( - 0,5 ; -0,(6) )
( - ∞ ; -0,(6) ] u [ 0,5 ; + ∞ )
[ -0,(6) ; - 0,5 ]
( -0,(6) ; - 0,5 )
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Выберите правильный промежуток
4x2 - 9 ≤ 0
x = 1,5
[1,5; - 1,5]
( -∞ ; -1.5] u [ 1,5; + ∞)
[ - 1,5; 1,5 ]
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Выберите верный промежуток
-x2 +12x -36 > 0
( −∞ ; +∞ )
x = 6
( −∞;6) u (6 ; +∞)
( −∞;6] u [6 ; +∞)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Выберите верный промежуток
-10(x + 7)(x - 5) < 0
( - ∞; -7) u ( 5 ; + ∞)
(-7 ; 5)
[-7 ; 5]
( - ∞; -7] u [ 5 ; + ∞)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Выберите верный промежуток
-2x + 12 > 3x - 3
x > 3
x = 3
x < 3
Тыкаю наугад
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Выберите верный промежуток
-(6y + 6) + 6 (y - 1) ≥ 0
корней нет
y ≥ 1
y ≤ 1
любое число
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