Mathematics
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The squares of a 2×500 chessboard are coloured black and white in the standard alternating pattern. k of the black squares are removed from the board at random. What is the minimum value of k such that the expected number of
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The squares of a 2×60 chessboard are coloured black and white in the standard alternating pattern. At random, exactly half of the black squares are removed from the board. The expected number of white squares that have no
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The squares of a 3×3 board are randomly coloured black or white. Let W be the number of white squares and B the number of black squares. The expected value of B−W can be expressed as ab where a and b are coprime positive
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The squares of a 3×3 board are randomly coloured black or white. Let W be the number of white squares and B the number of black squares. The expected value of B−W can be expressed as ab where a and b are coprime positive
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I am having trouble understanding how to solve this problem. I found an answer, about 74.2%, but I am not sure if that is correct. Any help would be greatly appreciated! A chess board has 64 squares, 32 white and 32 black, and is
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WHY WHEN I SEND A COLOURED DOCUMENT FROM MY HOME COMPUTER VIA WEBMAIL TO MY SCHOOL SITE DOES IT THEN PRINT OUT ON THE SCHOOL PRINTER AS BLACK AND WHITE EVEN THOUGH I CHOOSE THE COLOURED PRINTER 1) is your school printer a color
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Poor Delbert has been asked to do some tiling at home. He doesn't really understand the pattern. Can you help? How many black tiles to white?(1 to every 2) What is the proportion of black tiles to the whole pattern(1/3) What is
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im having a hard time with polynomials it just shows shapes and i dont understand, if somebody could help that would be great :) Which polynomial does the model represent? The picture shows a big black square, 2 white rectangles 1
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In mice, a gene controlling coat colour has 2 alleles; B (black) and b (white). A pure breeding black mouse is crossed to a white mouse and all the offspring are black. The offspring are then crossed to white mice. The phenotypes
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A printer takes 50 minutes to print a total of 1200 identical blackandwhite posters and 500 identical coloured posters. The same printer takes 1 hour to print 2400 such blackandwhite posters. How many such coloured posters can
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