Friday

August 22, 2014

August 22, 2014

Posted by **Ashley** on Friday, February 28, 2014 at 4:43pm.

- Math 30-2 -
**Steve**, Friday, February 28, 2014 at 4:48pm7C4 + 7C5 + 7C6 + 7C7 = 64

since

n

∑ nCk = 2^n

k=0

**Related Questions**

math - 56 books were put on 2 shelves w/ 1 shelf having eight less books than ...

Math - You installed a bookshelf on the wall to organize some of your books. The...

math - A student has 4 English books,3 math books,and 5 history books.In how ...

MATHS - Mrs.Koh purchased new books for the school library, of which 6 were ...

Math - John has 4 math books, 6 biology books,, and 8 statistics books to ...

Math - Practice Dividing by 9 A Jeweler placed 20 necklaces on 5 different ...

pre calc - A math teacher uses four algebra books, two geometry books, and three...

5th grade math - A set of books fills a shelf that is 24in long each book is 3/4...

Alg2 - How many ways can six different books be arranged on a shelf if one of ...

math - reggig has a shelf that is 17 inches long.he has a set of books and each ...