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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Inequalities in One Variable
Compound Inequalities
Warm-Ups
1
3 < 5 and 3 ≤ 10
A)
TRUE
B)
FALSE
2
3 < 5 or 3 < 10
A)
TRUE
B)
FALSE
3
3 > 5 and 3 < 10
A)
TRUE
B)
FALSE
4
3 ≥ 5 or 3 ≤ 10
A)
TRUE
B)
FALSE
5
4 < 8 and 4 > 2
A)
TRUE
B)
FALSE
6
4 < 8 or 4 > 2
A)
TRUE
B)
FALSE
7
-3 < 0 < -2
A)
TRUE
B)
FALSE
8
(3, ∞) ∩ (8, ∞) = (8, ∞)
A)
TRUE
B)
FALSE
9
(3, ∞) U [8, ∞) = [8, ∞)
A)
TRUE
B)
FALSE
10
(-2, ∞) ∩ (-∞, 9) = (-2, 9)
A)
TRUE
B)
FALSE
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