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OpenStudy (anonymous):
Evaluate the expression rn, where r = 25 and n is 1/2. A. 4 B. 5 C. 9 D. 25
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OpenStudy (anonymous):
r^n
OpenStudy (the_fizicx99):
B
OpenStudy (the_fizicx99):
rn or r^n ?
OpenStudy (anonymous):
r^n
OpenStudy (anonymous):
Taking something to the 1/2 power is the same as taking its square root. Likewise, taking something to the 1/3 power is the same as taking its cube root, and so on and so forth. I can't really explain the "why" very well, myself, but this site has a pretty good explanation: http://mathforum.org/library/drmath/view... if you're interested.
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OpenStudy (anonymous):
so B
OpenStudy (anonymous):
thanks guys
OpenStudy (the_fizicx99):
Yw
OpenStudy (anonymous):
no problem!
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