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13-01-2018
Mathematics

contestada

The sum of 3 integers is 56. if one of the integers is the square root of 625, and the second is twice the square root of 81 , then which prime number must be the third integer?

Respuesta :

18-01-2018

a+b+c=56
a=√625=25
b=2√81 = 2x9=18
c = 56-25-18=13

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