412brooke 412brooke

01-06-2018
Mathematics

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50 POINTS
Which number is the principal square root of 49?
(A) Both 7 and -7
(B) There is none
(C) 7
(4) -7

Respuesta :

Ster007 Ster007

01-06-2018

A, both 7 and -7,
[tex] - \times - = + [/tex]

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Faithl0326 Faithl0326

01-06-2018

* 7 = 49
-7 * -7 = 49
So since either negative or positive works, Id go with A.
HOPE THIS HELPS

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