How many strings of 1our decimal digits have all four digits that are different?

Q: Find the least amount of different numbers to pick from positive integers that are at most 100 to…

A:

Q: How many outfits can be made from 4 pairs of slacks, 5 shirts, and 3 ties, if one selection from…

A: First decide on a pair of slacks.For that there are 4 different choices.Now for each of those…

Q: Find 1!, 2!, 4!, and 6!.

A: Factorial:

Q: How many three-number combinations are possible on a combination lock having 40 numbers on its dial…

A: We have , total 40 number on dial and we have to find the combination lock of 3 digits. Since , the…

Q: Find the number of the permutation of 8 different things taken 3 at a time

A:

Q: How many zeros does 25! end with?

A: A number will have trailing zeros when 5 and at least one even number are factors of it.   Also, the…

Q: How many six-digit positive integers contain exactly one one, two twos and three treor? How many…

A: First note that here six digit integer can start only with 1 or 2. If it starts with 1 the remaining…

Q: 14. Complete. a. (- 3, 2) + (7, – 11) = _?_ b. 3(4, – 1) + (- 2)(-5, 3) =

A: Given a.)(-3,2)+(7,-11)=? b)3(4,-1)+(-2)(-5,3)=? We need to complete the solution.

Q: There are 10 pairs of socks (each pair is different) in a drawer in a dark room. Since you cannot…

A: There are  pairs of socks (each pair is different) in a drawer in a dark room.

Q: in how many ways can 5 starting positions on a basketball team be filled with 12 men who can play…

A:

Q: How many positive integers less than 1,000,000 have a digit sum of 5?

A: We have to find the number of positive integers 1,000,000 have a digit sum of 5. The number less…

Q: My first car had a license plate which had 3 letters followed by 3 digits. How many different such…

A: We have to find different licenses plates.

Q: Use any method, list all the three digit numbers from the set {3,4,5,6} where there are no repeating…

A:

Q: How many 5–digit (decimal) integers are there with none of the digits repeated?

A:

Q: A license plate in a certain county consists of 4 letters followed by 3 single digits.  How many…

A: Permutation is deals with arrangements. It is used to calculate the number of ways a certain number…

Q: 9:4=_:32

A:

Q: How many numbers between 1 and 10000 have the digits 1,3, and 5 such that each digit appears exactly…

A: Here Numbers between 1 and 10,000 have digits 1,3,5 and each appears exactly once only

Q: How many 15 letter strings containing only a's, b's, and c's have 6 a's and 4 b's?

A: Given: 15 letter strings containing only a's, b's and c's

Q: Determine 0!, 1!, 3!, and 4!.

A: Here, the values of 0!, 1!, 3! and 4! are required to be computed.

Q: Among all the numbers between 40000 and 90000, including the numbers 40000 and 90000, how many each…

A: The total number of numbers between 40,000 and 90,000 is 90,000-40,000+1=50,001. First calculate the…

Q: A 16-bit string is a sequence of 16 symbols, each symbol a 0 or a 1. How many 16-bit strings are…

A: A bit string is a sequence of  symbols, each symbol a  or a We have to find the possible number of…

Q: Determine 0!, 1!, 3!, and 4!.

A: Factorial Rule:The total number of ways n different objects can be arranged where order of the…

Q: How many 5-digit numbers (including leading 0s)are there with no digit appearing exactly two times?

A:

Q: An inventory consists of a list of 80 items, each marked "available" or "unavailable." There are 50…

A: Given: Number of items listed is 80, each marked as available or unavailable. There are 50 available…

Q: Find 3!, 7!, and 2!.

A: Factorial Rule:The total number of ways n different objects can be arranged where order of the…

Q: How many elements are in the set {2,2,2,2}

A: We have to find number of elements

Q: bank PIN is a string of four digits, each digit 0-9. How many choices are there for a PIN if the…

A: Given A bank PIN is a string of four digits, each digit 0-9. Odd numbers=1,3,5,7,9

Q: How many strings of three decimal digits (each digit can be 0-9) do not contain the same digit three…

A: Solution :-

Q: How many ways are there to list the digits 1,1,2,2,3,4,5 so that the digit 3 and 4 are not in…

A: Given Data: To find : How many ways are there to list the digits 1,1,2,2,3,4,5 so that the digit 3…

Q: There are 6 numbered balls in a bag. Each ball has a distinct number and the numbers are in {1,2, 3,…

A: Here given that there are 6 numbered balls in a bag. Each ball has a distinct number and the numbers…

Q: A certain discrete mathematics class consists of 3131 students. Of these, 1414 plan to major in…

A:

Q: How many four digit codes can be made out of the digits 0,2,4and 8 if the repetition of digits is…

A: We have to find four digit codes can be made out of the digits 0,2,4and 8 ....