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Posted by **Saiyuri** on Thursday, April 12, 2012 at 1:01pm.

log base 25 (log base 7 X)= -1/2

- calculus PLZ HELP! -
**Steve**, Thursday, April 12, 2012 at 1:06pmlog25(log7(x)) = -1/2

since 25^1/2 = 5,

25^-1/2 = 1/5

log7(x) = 1/5

x = 7^1/5

- calculus PLZ HELP! -
**saiyuri**, Thursday, April 12, 2012 at 1:11pmthanks!

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