Posted by Katie on Tuesday, February 15, 2011 at 5:25pm.
How many possible combinations for an 8digit binary number are there? How did you get this an answer?

5th grade math  PsyDAG, Wednesday, February 16, 2011 at 12:14pm
Can the numbers be repeated? If not, this is combination of arranging r items out of n items:
nCr = n!/r!(nr)!
n = 10, r = 8
5! = 5 factorial = 5 * 4 * 3 * 2 * 1 = 120

5th grade math  brittany, Thursday, February 24, 2011 at 6:46pm
the johnsons has ben verry bussy and havet done laundry in several weeks the dirty cloth pile hase 540 cloths they figur they can put 27 pices of clothing in a singal load. how many loads of laundry will the johnsens family to do to wash all the itams of clothing

5th grade math  Anonymous, Saturday, June 18, 2011 at 11:24am
54
Answer This Question
Related Questions
 math  the binary system is used for computer programming. a binary number ...
 math  Answer the following questions below that go with the following: Let's ...
 5th grade math  What is the greatest number of times you would regruop when ...
 5th grade math  In the multiplication problem at the right different letters ...
 5th Grade Math  Not only need answer but need to know how you teach a 5th ...
 5th Grade Math  Not only need answer but need to know how you teach a 5th ...
 5th grade  The number has 7 digits It is evenly divisible by 100 The value of ...
 Math  Hi! Can someone check my answers? Thanks!! Directions: Tell whether the ...
 Math  Hi! Can someone check my answers? Thanks!! Directions: Tell whether the ...
 math  How many different fourdigit number combinations are possible from the ...
More Related Questions