Question

3) True or false? If false, explain why.

Answer 1

First let's define the sets that we will be using:

Integers: Are these numbers that can be written as an addition or subtraction of ones.

Rational numbers: Are these numbers that can be written as the quotient of two integers.

Irrational numbers: Are these numbers that can't be written as the quotient of two integers.

With this, we will see that the true options are A and D.

Now, to see which statements are true and which ones are false, let's analyze each one of them:

a) All integers are rational.

True, each integer number N can be written as:

N = N/1

Thus an integer number is a rational number.

b) if a number is rational, then it must be a whole number.

False, 1/2 = 0.5 is a rational number and is not a whole number.

c) Some irrational numbers are intergers

False, as we already see, all integers are rational numbers.

d) all irrational numbers are real numbers

True, we define real numbers as the union of the set of the irrational numbers and rational numbers, thus an irrational number is a real number.

e) No whole numbers are integers.

False, all whole numbers are integers (but not all integers are whole numbers).

So the ones that are true are: a and d.

If you want to learn more, you can read:

brainly.com/question/24540629