Answers

2015-07-22T22:52:04+08:00
7, _, 175, 875. Find the geometric mean between 7 and 175.
Formula
Use t3 = 175 = tn
With that use n=3
tn= t1 (r^n-1)
175 = 7 (r^3-1)
175= 7 (r^2)
*transposition*
175/7 = r^2
25= r^2
*the square root of both sides*
r = 5
So...
tn = t1 (r^n-1)
t2= t1 (r^2-1)
t2= t1 (r^1)
t2= 7 (5)
t2 = 35
Therefore, the geometric mean between 7 and 175 is 35.
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thank you "stratus" .. math genius??
lol.. I wouldn't say that much. Just a Math Lover. :3
oh..aahah... anyways.. boy or girl??
Boy :3
okay... :-)..