MATH PUZZLE: Replace the que...MATH PUZZLE: Replace the question marks with a numbers and calculate product these numbers.
Correct answers: 139
The first user who solved this task is Roxana zavari.
Sir Frederic WilliamsDied 11 Aug 1977 at age 66 (born 26 Jun 1911).British electrical and electronics engineer who, with Tom Kilburn, invented the Williams tube, a cathode-ray tube using the persistence of the image on the phosphor screen for data storage. This made possible the random access memory that launched the digital computer age. As the Chair in Electrotechnics at Manchester University, he incorporated this invention into the Mark I computer, the world's first stored-program digital electronic computer to be commercially produced during the early 1950's.