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Which is the set of numbers greater than or equal to 5-5 and less than or equal to 2-2?\newlineChoices:\newline(A) \{x | x < -5 \text{ and } x > -2\} \newline(B) \{x | x \geq -5 \text{ or } x < -2\} \newline(C) {xx5 and x2}\{x | x \leq -5 \text{ and } x \geq -2\} \newline(D) {xx5 and x2}\{x | x \geq -5 \text{ and } x \leq -2\}

Full solution

Q. Which is the set of numbers greater than or equal to 5-5 and less than or equal to 2-2?\newlineChoices:\newline(A) {xx<5 and x>2}\{x | x < -5 \text{ and } x > -2\} \newline(B) {xx5 or x<2}\{x | x \geq -5 \text{ or } x < -2\} \newline(C) {xx5 and x2}\{x | x \leq -5 \text{ and } x \geq -2\} \newline(D) {xx5 and x2}\{x | x \geq -5 \text{ and } x \leq -2\}
  1. Understand the problem: Understand the problem. We need to find the set of numbers that are greater than or equal to 5-5 and at the same time less than or equal to 2-2.
  2. Identify inequality signs: Identify the correct inequality signs for the conditions given. For "greater than or equal to 5-5", the inequality sign is \geq. For "less than or equal to 2-2", the inequality sign is \leq.
  3. Combine conditions logically: Combine the two conditions using the correct logical connector. Since a number has to satisfy both conditions at the same time, we use "and" to combine them.
  4. Translate into set notation: Translate the combined conditions into set notation. The correct set notation for numbers that are greater than or equal to 5-5 and less than or equal to 2-2 is {xx5 and x2}\{x | x \geq -5 \text{ and } x \leq -2\}.
  5. Match with given choices: Match the correct set notation with the given choices. The correct choice is (D){xx5 and x2}(D)\{x \mid x \geq -5 \text{ and } x \leq -2\}.

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