The Carbohydrate Fermentation test uses Phenol Red Broth to test for the fermentation of different sugars. It is one of the fermentation tests, others include the Methyl Red test and the Voges-Proskauer test.
The main reason why we use hexadecimal numbers is because it is much easier to express binary number representations in hex than it is in any other base number system. Computers do not actually work in hex (donât laugh, beginning students do ask that question). Lets look at an example, using a byte.
1 Write out your hexadecimal number: 15B30 16. 2  Write each digit out as a decimal multiplication problem, using the place value in the chart above: 15B30 = (1 x 6553610) + (5 x 409610) + (B x 25610) + (3 x 1610) + (0 x 1). 3  Convert non-decimal symbols into decimal numbers.TML uses hexadecimal to describe colors. This is convenient, since a two-digit hexadecimal number can communicate exactly 256 10 possible values. This isn't a coincidence; the number 256 10 is due to limitations of old hardware, which could only handle 100000000 2 colors, or 256 10.