Hardin015
contestada

What is the solution set of {x | x < -3} ∩ {x | x > 5}?


A. the empty set

B. all numbers except -3 and 5

C. all real numbers

D. the numbers between -3 and 5


2.
What is the solution set of {x | x < 2}U{x | x ≥ 2}?

A. all numbers less than -2 and greater than 2
B. all real numbers
C. the empty set
D. the numbers between -2 and 2

3.

Which of the following describes the graph of {x | 1 < x < 2}?

A. open circles on 1 and 2, line segment between
B. open circles on 1 and 2
C. open circles on 1 and 2, arrows pointing out
D. no solution

Respuesta :

mhanifa

Answer:

  • 1) A, 2) B, 3)A

Step-by-step explanation:

#1

Intersection of the two given sets is the empty set as the sets cover two different intervals without common elements.

Correct choice is A

#2

Assume there is a union sign between sets.

The union of the two sets is both of them.

Correct choice is B

#3

Both the points are excluded, so both ends are open circles and the graph covers the interval between them.

Correct choice is A

charitybear52012

Your answers would be:

1.)   A

2.)  B

3.)  A