Answer/Discussion
to 1a
5 ? 0
Since 5 is to the right of 0 on the number line, then 5 > 0.
Answer/Discussion
to 1b
First of all, 
.
Next we have 
.
Since both absolute values equal the same number ½, then 
.
Answer/Discussion
to 1c
-2 ? 2
Since -2 is to the left of 2 on the number line, then -2 < 2.
Answer/Discussion
to 2a
-3 < -3
Since -3 is the same number as -3 and the statement includes where the two numbers are equal to each other, then this statement is true.
Answer/Discussion
to 2b
2 > 4
Since 2 is to the left of 4 on the number line, then 2 < 4.
So, the above statement is false.
Answer/Discussion
to 3a
-4 is less than 0.
Reading it left to right we get:
-4 is less than 0
-4 < 0
Answer/Discussion
to 3b
3 is not equal to -3.
Reading it left to right we get:
3 is not equal to -3
Answer/Discussion
to 3c
5 is greater than or equal to -5.
Reading it left to right we get:
5 is greater than or equal to -5.
5 > -5
Answer/Discussion
to 4a
Natural numbers
The numbers in the given set that are also natural numbers are
{2, 
}.
Note that simplifies to be 3 which is a natural number.
Answer/Discussion
to 4b
Whole numbers
The numbers in the given set that are also whole numbers are
{0, 2, }.
Answer/Discussion
to 4c
Integers
The numbers in the given set that are also integers are
{0, 2, }.
Answer/Discussion
to 4d
Rational numbers
The numbers in the given set that are also rational numbers are
{-1.5, 0, 2, }.
Answer/Discussion
to 4e
Irrational numbers
The number in the given set that is also an irrational number is
{
}.
Answer/Discussion
to 4f
Real numbers
The numbers in the given set that are also real numbers are
{-1.5, 0, 2, ,}.
Last revised on July 22, 2011 by Kim Seward.
All contents copyright (C) 2001 - 2011, WTAMU and Kim Seward.
All rights reserved.