No, IX is 9 and XI is 11
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No, it is 9 XI is 11 in Roman numerals (10+1=11)
No, IX = 9 11 = XI
No because IX in Roman numerals represents 9
No. IX is ten minus 1 and represents 9. XI is the same as 11.
The date 9-11-1991 in Roman numerals is IX-XI-MCMXCI.