
Sav. d. iš nelygybių ir intervalų. S-30, S-31, S-32 8 kl.
Mathematics
8th Grade
Used 11+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
3x>15
x ∈ ( 5; +∞)
x ∈ [ 5; +∞)
x ∈ ( +∞; 5 )
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
9z < 0,18
z ∈ ( −∞, 0,02)
z ∈ ( −∞, 0,2)
z ∈ ( −∞, 0,02]
z ∈ ( 0,02; −∞ )
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
−1,4a ≥ −2,8
a ∈ [ 2; +∞)
a ∈ ( −∞; 2 ]
a ∈ ( −∞; 2 )
a ∈ ( −∞; −2 ]
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
−2 1∕4 a ≤ 3
a ∈ ( −1 1∕3; +∞ )
a ∈ [ −1 1∕3; +∞ )
a ∈ ( −∞ ; −1 1∕3 ]
a ∈ [ 1 1∕3; +∞ )
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
18 < 3x
x ∈ ( 6; +∞ )
x ∈ [ 6; +∞ )
x ∈ (−∞; 6 )
x ∈ (−∞; 6 ]
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
y ∕ 3 ≥ −3
y ∈ (−9; +∞)
y ∈ [−9; +∞)
y ∈ −∞; −9]
y ∈ (+∞; −9]
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
y ∕ (−6) ≥ 8 1∕6
y ∈ [−49; +∞)
y∈ (−49; +∞)
y ∈ (−∞; −49]
y ∈ (+∞; −48 1∕6]
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