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avatar+251 

which number produces an irrational number when mutiplied by 4.0?

A.sqrt(9

B.0444...

c.3pi

d.2/7

 Feb 20, 2019
 #1
avatar+98126 
+3

c is correct

 

3pi * 4  =

 

12 pi

 

pi is irrational.....and a real non-zero multiple of an irrational is still an irrational

 

 

BTW.... b =  .0444... =   4/90 = 2/45....so 4 * 2 /45 = 8 /45  which is rational

 

cool cool cool

 Feb 20, 2019

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