SOLUTION: Select any irrational number and turn into a rational number by using addition, subtraction, multiplication, or division. Help I am not understanding this......thank you for the h

Algebra ->  Real-numbers -> SOLUTION: Select any irrational number and turn into a rational number by using addition, subtraction, multiplication, or division. Help I am not understanding this......thank you for the h      Log On


   

Question 177274: Select any irrational number and turn into a rational number by using addition, subtraction, multiplication, or division.
Help I am not understanding this......thank you for the help
Found 2 solutions by jim_thompson5910, stanbon:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Take the irrational number sqrt%287%29 and multiply it by itself sqrt%287%29 to get

sqrt%287%29%2Asqrt%287%29=sqrt%287%2A7%29=sqrt%2849%29=7


So sqrt%287%29%2Asqrt%287%29=7


So by multiplying sqrt%287%29 by itself, we took the irrational number and made it into a rational number (7 is rational since 7=7%2F1)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Select any irrational number and turn into a rational number by using addition, subtraction, multiplication, or division.
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sqrt(2) is an irrational number.
[sqrt(2)*sqrt(2)] = 2 is a rational number
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Cheers,
Stan H.