Which whole number is closest to √82
a.6
b.7
c.8
d.9​


Sagot :

Answer:

D.9

Step-by-step explanation:

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Answer:

D. 9

Step-by-step explanation:

82=9⋅9 then the square root of √82=9. Because the double multiplication for the same sign is always positive, the square root is also valid with the other sign 82=(−9)⋅(−9) then √82=−9 and we can say that √82=±9