Concept explainers
HTML Colors in HTML (the language in which many web pages are written) can be represented by six-digit hexadecimal codes: sequences of six integers ranging from 0 to 15 (represented as 0, …, 9, A, B, …, F).
a. How many different colors can be represented?
b. Some monitors can display only colors encoded with pairs of repeating digits (such as 44DD88). How many colors can these monitors display?
c. Grayscale shades are represented by sequences xyxyxy consisting of a repeated pair of digits. How many grayscale shades are possible?
d. The pure colors are pure red: xy 0000; pure green: 00 xy 00; and pure blue: 0000xy. (
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Finite Mathematics
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