Квадратные неравенства

Квадратные неравенства

8th - 12th Grade

10 Qs

quiz-placeholder

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Квадратные неравенства

Квадратные неравенства

Assessment

Quiz

Mathematics

8th - 12th Grade

Practice Problem

Hard

Created by

Никита Зайцев

Used 193+ times

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10 questions

Show all answers

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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