is 16pi rational or irrational?? Help please.

Question

danjs · Answer

pi is for sure not a rational number, and i think any constant times an irrational is also irrational

danjs · Answer

trancendental...

danjs · Answer

a RATIOnal number can be expressed as a ratio of a/b

anonymous · Answer

i know its not a rational number but its confusing.

anonymous · Answer

what about this answer? ill draw it .

danjs · Answer

http://www.mathsisfun.com/irrational-numbers.html

anonymous · Answer

|dw:1443160030434:dw|

danjs · Answer

if a decimal repeats , i think you can always convert that into a fraction...

danjs · Answer

something like letting   s = 0.484848484848..
                                       100s = 48.4848484848....

100s - s = 99s = 48

s = 48/99

danjs · Answer

you see that

anonymous · Answer

okay thanks.

anonymous · Answer

yeah i got it now, Appreciate it.

danjs · Answer

i would look up the properties of each, and what operations you can do , like multiplying by a constant, or adding a constant, or squaring... whatever

danjs · Answer

without affecting the type of number it is

anonymous · Answer

i am now ah thanks.

danjs · Answer

welcome