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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
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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

User Bsorrentino
by
5.6k points

2 Answers

3 votes
* 7 = 49
-7 * -7 = 49
So since either negative or positive works, Id go with A.
HOPE THIS HELPS
User Lance Roberts
by
5.4k points
4 votes
A, both 7 and -7,

- * - = +
User Poldixd
by
5.7k points
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