epicriderexe epicriderexe

01-02-2019
Mathematics

contestada

what is the geometric mean of 3 and 7?
a) square root of 21
b) 2 square root of 6
c) 2 square root of 7
d) 21

Respuesta :

jimrgrant1 jimrgrant1

01-02-2019

Answer:

a

Step-by-step explanation:

The geometric mean of 2 numbers a and b is the square root of the product of the 2 numbers, that is

geometric mean = [tex]\sqrt{ab}[/tex]

given 3 and 7, then

geometric mean = [tex]\sqrt{3(7)}[/tex] = [tex]\sqrt{21}[/tex] → a

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