Friday

December 19, 2014

December 19, 2014

Posted by **anoynomous** on Tuesday, April 9, 2013 at 7:51am.

- maths- rational no. -
**Steve**, Tuesday, April 9, 2013 at 11:21am2.5 = 5/2

4.5 = 9/2

so, a short list of rational numbers between the two might contain

6/2 7/2 8/2

Expressing them as 6ths,

2.5 = 15/6

4.5 = 27/6

Now there are a lot more possibilities, all multiples of 1/6

- maths- rational no. -
**Steve**, Tuesday, April 9, 2013 at 11:25amOops! I missed the "irrational" part!

Since

2.5^2 = 6.25

4.5^2 = 20.25

Pick any integers between those, except 9 and 16, which are perfect squares.

√7 √8 √10 ... √20

are all irrational.

Since

2.5^3 = 15.625

4.5^3 = 91.125

There are lots of possibilities there, excluding 27 and 64:

∛16 ∛17 ... ∛91

are all irrational

You can pick non-integer values, as long as they don't turn out to be perfect powers.

**Answer this Question**

**Related Questions**

irrational numbers?! - what are rational and irrational numbers?? i know that ...

math - What is the best sequence of names to identify this set of numbers? (1 3/...

math- please help - What is the best sequence of names to identify this set of ...

Math - What are irrational, rational, and natural numbers? A rational number is ...

Math - Are there more rational or irrational numbers? I am thinking irrational, ...

9th grade - Name the set(s) of numbers to which 1.68 belongs. a. rational ...

math - 1. Which of the following numbers is an example of an integer? a. -15 b. ...

Algerba II - Hi Do decimals such as 2.718 represent rational numbers or ...

math - hi i need help with rational and irrational numbers. i just need to know ...

maths - an example of two irrational numbers whose product and qoutient is a ...