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OpenStudy (anonymous):
A Identication code is to consist of seven letters followed gy three digits. how many different codes are possible if repetition is premitted?
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OpenStudy (anonymous):
\[26^{7}10^{3}\]
OpenStudy (anonymous):
that's how it should go?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
there are 26 letetrs in english alfabeth, no?
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
so then it's right
OpenStudy (anonymous):
ok thanks
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