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The probability of ac and bc is 1/5.
yes because ab plus bc is ac
36
I believe it means Before
It is possible, depending on what on earth AC and BC are!
ac is After Christ and bc is Before Christ
Assuming that AB and AC are straight lines, the answer depends on the angle between AB and AC. Depending on that, BC can have any value in the range (22, 46).
In the Erechtheid dynasty 1556-1506;BC Cecrops;I 1506-1497;BC Cranaus 1497-1487;BC Amphictyon 1487-1437;BC Erichthonius 1437-1397;BC Pandion;I 1397-1347;BC Erechtheus 1347-1307;BC Cecrops;II 1307-1282;BC Pandion;II 1282-1234;BC Aegeus 1234-1205;BC Theseus 1205-1183;BC Menestheus 1183-1150;BC Demophon 1150-1136;BC Oxyntes 1136-1135;BC Apheidas 1135-1127;BC Thymoetes Melanthid dynasty 1126-1089;BC Melanthus 1089-1068;BC Codrus
A+BC+AC+B=A+BC+AC+B unless any of these variables has an assigned value.
BC means Before Christ
BC
it would be C because C is the last letter in ac and bc