Respuesta :

W0lf93
The correct answer is option B. i..e 9.5 The geometric mean of any two numbers a and b is given as the squareroot of the product of a and b. Thus, the geometric mean of 7 and 21 is sqrt(7*12) = sqrt(84) = 9.16 ~ 9.5

Answer:

C. [tex]2\sqrt{21}[/tex]

Step-by-step explanation:

dcbac

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