Are the irrational numbers closed under multiplication?

No, irrational numbers are not closed under multiplication.

Step-by-step explanation:

Irrational numbers are the numbers that cannot be demonstrated in the form of a fraction . We can define rational numbers in other ways as well. Irrational numbers are the numbers which when written in decimal form, the decimal expansion does not end. For example √2, √3, etc.

The closed property of multiplication of irrational numbers state that if two irrational numbers are multiplied, then their product is also an irrational number.

Let a and b be two irrational numbers, then a×b = c(c is product of a and b), c should also be an irrational number.

Irrational numbers are not closed under multiplication and this can be illustrated with the help of an example:

√2 × √2 = 2

It is clear that 2 is not an irrational number.

Hence, irrational numbers are not closed under multiplication.

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step-by-step explanation:

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation: