Computer Code The ASCII code used by most computers uses the

Computer Code. The ASCII code used by most computers uses the last seven positions of an eight-bit byte to represent all the characters on a standard keyboard. how many different orderings of 0\'s and 1\'s (or how many different characters) can be made by using the last seven positions of an eight-bit byte?

Solution

1) using seven bit 2⁷ chars = 128 chars

2) Sean takes two 250-mg chewable calcium tablets each day

a) so in seven days = 7* 250*2 = 3500 mg

b) in grams 3500 mg = 3.5 grams since 1g = 1000mg