Posted by Debra on Sunday, December 6, 2009 at 8:21pm.
write each of the following in the indicated base.
1011two to base ten
1574 to base twelve
MCMLIV to base ten

College Math 213  Reiny, Sunday, December 6, 2009 at 9:38pm
1011two to base ten
= 1(2^3) + 0(2^2) + 1(2) + 1
= 11
1574 to base twelve
powers of 12:
12, 144, 1728 , ...
1574/144 = 10 with remainder of 134
134/12 = 11 with remainder of 2
so 1574 = 10(12)^2 + 11(12) + 2
= AB2 in base 12
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