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How many of these are irrational numbers?

 

-sqrt(16/36)

-sqrt(27/48)

-sqrt(9/8)

-sqrt(10/5)

-sqrt(37/50)

-sqrt(2/8)

 Jul 21, 2021
 #1
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How many of these are irrational numbers?   —>>>   The answer is that 3 of them are irrational.  

 

You know that all "rational" means is can it be expressed as a ratio.  

 

-sqrt(16/36)                                                              4/6               rational  

-sqrt(27/48)   divide by 3/3 and the answer is           3/4              rational  

-sqrt(9/8)       multiply by 2/2 and the answer is        3sqrt(2)/4    irrational  

-sqrt(10/5)                                                                sqrt(2)         irrational  

-sqrt(37/50)   this won't reduce                                                    irrational  

-sqrt(2/8)                                                                  1/2               rational  

 Jul 22, 2021

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