Bob buys 20 watermelons...
He eats 10. If x=x, what is the square root of 49?
2 answers:
I know that the square root of 49 = 7 since 7 x 7 = 49. But the negative square root of 49 is -7.
A square root is a number which is multiplied by itself it equals the original number. Therefore 7x7= 49. 49 is the original number. The square root is 7
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