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true or false...

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2007-02-20 21:28:48 · 7 answers · asked by Anonymous in Science & Mathematics Mathematics

7 answers

A number is rational if you can write it as a fraction.

4.33333... = 4 1/3 = 13/3

So, yes, it's rational.

2007-02-20 21:37:33 · answer #1 · answered by Mathematica 7 · 0 0

Absolutely. It equals 4 1/3, aka 13/3.

All repeating decimals are rational.

You'll be able to prove that all repeating decimals are rational when you learn about infinite series, aka infinite sums or summations. For example, you'll have a direct way to compute what 4 + 1/3 + 1/3 squared + 1/3 cubed + ... equals.

2007-02-21 05:32:23 · answer #2 · answered by Curt Monash 7 · 1 0

Definition
A rational number is a number that can be put in the form p/q where p and q are integers.

Therefore 13/3 is a rational number.

But 13/3 = 4.333333333--------

Therefore 4.3333----- is a rational number.

2007-02-21 06:12:04 · answer #3 · answered by Como 7 · 0 0

A rational number means that it can be N/D where N and D are integers.

If X = 4.33333.......
then 10X = 43.33333......

if we subtract we get

9X = 39

now if X can be made by dividing two integers then TRUE

otherwise FALSE

2007-02-21 05:37:54 · answer #4 · answered by Roy E 4 · 0 0

Yes. Rational numbers are either recurring/repeating decimals(eg. 4.33333...) or a standard decimal(eg. 0.5). Irrational numbers are those numbers (with decimals) which do not have repeating decimals, which means the decimals are different numbers(eg. 3.145769873) The mathematical sign "pi" is an irrational number.

2007-02-21 05:35:23 · answer #5 · answered by Wini 1 · 0 0

Numbers are like women. Even when they're rational, you can tell they're ruled by their emotions. And repeating decimals are the most emotional numbers of all. (Don't get me started on the so-called "complex numbers.")

2007-02-21 05:36:19 · answer #6 · answered by Chris A 7 · 0 1

No no No no

2007-02-21 05:32:40 · answer #7 · answered by sandra w 1 · 0 3

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