If x is the principal square root of 7, what must be true. A. x = 7², and x is negative

B. x² = 7, and x is positive

C. x = 7², and x is positive

D. x² = 7, and x is negative

B

Step-by-step explanation:

x=√7

squaring

x²=7

the answer is 0.3175 hope that you ^w^

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answer   download the app called socratic on your phoner:

step-by-step explanation: