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The Bulgarians and the Arabs were the 2 main enemies of the byzantine empire.
In French, 542 is spelled out "cinq cent quarante-deux".
The Justinian plague affected the Roman Empire from 541-542 AD. The Bubonic plague or the black death name was not used by that time but historians are sure that it is the same thing.
The Cambrian Explosion, around 542 million years ago.
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1084
Let t=0 denote the start of transmission. At t=1 msec, the first frame has been fully transmitted. At t=271 msec, the first frame has fully arrived. At t=272 msec, the frame acknowledging the first one has been fully sent. At t=542 msec, the acknowledementbearing frame has fully arrived. Thus, the cycle is 542 msec. A total of k frames are sent in 542 msec, for an efficiency of k/542. Hence a) k=1, efficiency=1/542=0,18% b) k=7, efficiency=7/542=1,29% c) k=4, efficiency=4/542=0,74%
The result of adding 542 plus 542 is equal to 1084.
The positive integer factors of 542 are: 1, 2, 271, 542
542 542 or 6969
The Bulgarians and the Arabs were the 2 main enemies of the byzantine empire.
542 / 7 = 77.42857
542 + 8 = 550
271 x 2 = 542 542 + 542 = 1,084 = 271 x 4
6*3*542 = 9756
542 billion = 542,000,000,000
271