Geometry
18 Online
OpenStudy (anonymous):
need some help, whats a geometric mean
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OpenStudy (ivettef365):
it is the nth root of the product of n numbers
OpenStudy (ivettef365):
if you have 2, 8 and 4
then cubic root 2 x 8 x 4 = 4
cubic root because there are 3 numbers
OpenStudy (jack1):
if it's only 2 numbere ( a and b)
geometric mean is sqrt of (a times b)
OpenStudy (anonymous):
is it the same thing when the is asking for the geometric mean "between" 2 numbers?
OpenStudy (anonymous):
the Question*
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OpenStudy (jack1):
yep
OpenStudy (ivettef365):
right
OpenStudy (jack1):
its just like its asking for a certain relationship "between" 2 numbers
OpenStudy (anonymous):
gotcha but when i multiplied a*b then squared the result of a*b my answer was nt any of the choices tht was given so what did i do wrong?
OpenStudy (jack1):
... from the way you described it... nothing
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OpenStudy (jack1):
what are your numbers?
OpenStudy (anonymous):
6 and 8
OpenStudy (jack1):
dammit, sorry, u need to square root, not square
OpenStudy (jack1):
\[\sqrt{ab}\]
OpenStudy (jack1):
sqrt is just shorthand for square root
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OpenStudy (anonymous):
nonono thts what i did, i found the square root of 6*8 and i got this string of retarted numbers.. O.O
OpenStudy (jack1):
6*8 = 48
sqrt 48 = 6.93
OpenStudy (jack1):
what did u get?
OpenStudy (anonymous):
my choices are a) 7
b)
c) 14
d) 48
OpenStudy (jack1):
whats b...?
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OpenStudy (jack1):
and i guess if you're rounding 6.93 ~~~ 7
OpenStudy (anonymous):
oops.. it was 4sqrt3 but it had the square root symbol after
the 4
OpenStudy (jack1):
6.928 = 4* sqrt 3 = sqrt 48
OpenStudy (jack1):
id def go b
OpenStudy (anonymous):
alright thanks i appreciate it. ill be back later for other q's, goin for lunch
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OpenStudy (jack1):
headin to bed, is 1:30
slaters, good luck
OpenStudy (anonymous):
okay, later