my teacher gave us a packet to do over spring break. so i need help on some problems. please help me!! heres is the question and problem...
what is an irrational number?
a. 5
b. 9
c. -1
d. -2 over 3
pick the correct answer. if u could help me on my other problems then please email me. thanks!!!!!!!!
2007-04-06 10:22:20 · 10 answers · asked by prettymaria4ever 1 in Science & Mathematics ➔ Mathematics
None of those numbers are irrational.
Irrational numbers are numbers that cannot be written as the ratio of two integers.
2007-04-06 10:25:26 · answer #1 · answered by Anonymous · 1⤊ 0⤋
The correct answer is "none of the above".
An irrational number is one that cannot be
written as a fraction. But
5, 9 and -1
can be written as 5/1, 9/1 and -1/1 respectively,
while the last one is a fraction.
Examples of irrational numbers are Ï, â2 and â3.
2007-04-06 19:12:42 · answer #2 · answered by steiner1745 7 · 0⤊ 0⤋
None of these numbers are irrational, because they are all in fact rational. You can rewrite them as fractions of whole numbers, which by definition means that they are rational. For example, you can rewrite these four numbers as
5/1, 18/2, -3/3, -2/3
Anybody who claimed the answer was "c" or "d" is somebody who doesn't know the definition of a rational number.
2007-04-06 17:32:13 · answer #3 · answered by Anonymous · 2⤊ 0⤋
Penny is wrong, Geezah is right. A rational number is a number that can be expressed as a ratio of two other numbers. These are all rational.
If there is a "None of the Above," pick that.
2007-04-06 17:46:58 · answer #4 · answered by Nameless 4 · 0⤊ 0⤋
Sorry.... -2/3 is repeating, but it's rational. They all are. An irrational number is a fraction that doesn't repeat, like pi or e or the square root of 2.
2007-04-06 17:27:40 · answer #5 · answered by Meg W 5 · 1⤊ 0⤋
None of those numbers are irrational.
2007-04-06 17:33:23 · answer #6 · answered by Groo-V 2 · 1⤊ 0⤋
Hmm...sorry but none of these answers are irrational.
Maybe you got the question wrong. Try again
2007-04-06 18:36:40 · answer #7 · answered by Hawaiian Surfer Girl 1 · 0⤊ 0⤋
None
2007-04-06 17:49:09 · answer #8 · answered by me and just me 2 · 0⤊ 0⤋
i dont think any of those are....Is there an letter with the answer, none of the above?
2007-04-06 17:26:33 · answer #9 · answered by Anonymous · 1⤊ 0⤋
the answer is c
2007-04-06 17:27:11 · answer #10 · answered by Shi-chan 2 · 0⤊ 7⤋