Question

True/False: If a real number is not irrational, then it is rational.

Answer 1

true since real numbers are either rational or irrational

Answer 2

actually...if you extend definition to a complex number then it could be false

Answer 3

since a real number can be complex

Answer 4

A real number can be complex, but a complex number is not always real. Real numbers are a subset of complex numbers, so considering them here is incorrect.

Answer 5

Or, rather, all real numbers *are* complex, but all complex numbers are not real.

Answer 6

true

Answer 7

but in this case is true?
how did I know if the number is real?
thank you guys

Answer 8

The problem specifically limits the numbers you're considering to the real numbers.

Answer 9

okey that help thanks

Answer 10

Use the commutative property of multiplication to rewrite the given expression.
(w + 13)(–14)

Answer 11

where I start to rewrite in this problem?

Answer 12

Try asking it on the left, more people will see it :)