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If x is the principal square root of 7, what must be true?

a. x = 72, and x is positive

b. x2 = 7, and x is negative

c. x2 = 7, and x is positive

d. x = 72, and x is negative

1 Answer

1 vote

Answer:C

Explanation:

x is
√(7) \\=2.645

which means 2.645²=7

User Thang Luu Quoc
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