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IrinaK [193]
3 years ago
13

PLZ HALP :(

Mathematics
2 answers:
Vinvika [58]3 years ago
6 0

The answers are -√7, 0, √7. i just took the test so I know these are right.

Sergio [31]3 years ago
5 0
In this item, I assume that the number written is square root of 7. Square root of 7 is an irrational number that when multiplied to itself will give a rational value. That is,

                (square root of x)(square root of x) = x

By using the same principle,

               (square root of 7)(square root of 7) = 7

7 now as the answer is a rational number. 

Thus, the answer is the third choice. 
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I have a weird way of doing it

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