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Liono4ka [1.6K]
3 years ago
12

Please help! I’m kinda lost!!!

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

  1. D
  2. B
  3. A
  4. C

Step-by-step explanation:

A curved bracket ( ) corresponds to a < symbol. A square bracket [ ] corresponds to a ≤ symbol. The square bracket signifies that the point is included in the interval. The curved bracket indicates the point is not included in the interval.

The interval a,b means a is the lower end of the interval and b is the upper end. The values of the variable lie between. So, for example, (a, b] means ...

  a < x ≤ b

  1. [3, 5) ⇒ 3 ≤ x < 5 . . . matches D
  2. (3, 5) ⇒ 3 < x < 5 . . . matches B
  3. (3, 5] ⇒ 3 < x ≤ 5 . . . matches A
  4. [3, 5] ⇒ 3 ≤ x ≤ 5 . . . matches C
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