Question

The set of all numbers less than or equal to −4 or greater than 0.

Answer 1

Answer:

I don't understand

Step-by-step explanation:

mmmmmmmmmmmmmmmmmmm

Answer 2

Answer:(-∞,-4] U (0,∞)

Step-by-step explanation: “the set of all numbers” is equivalent to (-∞,∞). “Less than or equal to” is equivalent to ≤. Since it’s asking for the set of all numbers less than or equal to -4, you’ll get (-∞, -4]. “Or greater than 0” you get (0,∞) and use the parentheses since it’s not asking for anything greater than or equal to. Remember “less than or equal to & greater than or equal to” you use brackets. When you use the infinity symbols you utilize parentheses.