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Question
how many nine-digit binary numbers do not have any consecutive zeros?

Answer
if by consecutive zero you mean a zero after another zero, then

111111110 - 011111111 = 9 numbers
111111010 - 011111110 = 7 numbers
111101010 - 011111010 = 5 numbers
110101010 - 011101010 = 3 numbers
010101010             = 1 number

There are probably more binary numbers, which you will have to find, because i am not certain if i covered them as well.  

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Sherman D.

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I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

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Mathematics, Recipes, History, and Games.

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High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

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Principle's list and A and B honor roll in high school only.

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