However, if you're breastfeeding exclusively (and that means frequently, day and night), if your baby is younger than 6 months and if your period hasn't resumed, the so-called lactation amenorrhea method can be 98 percent effective in preventing pregnancy.
Then x has a expansion of decimal which terminates. 3) Let x =p/q be a rational number, such that the prime factorization of q is not of the form 25, where n, m are non-negative integers. Then, x has a expansion of decimal which is non-terminating repeating (recurring).
The Dewey Decimal System is a way to organize non-fiction books in a library by call numbers. The system was invented by Melvil Dewey in the 1800s to help library collections. It's divided into 10 categories based on the book's non-fiction content. To unlock this lesson you must be a Study.com Member.