How many strings of letters from the set (A, B} have length 11 and have exactly 4 A's (repeated letters are allowed)? OP(15, 11) OC(11, 4) OC(15, 4) OP(11, 4) OP(15, 4) OC(15, 11)

Q: In how many ways can the letters of the word HORRAR be arranged if vowels are together?

A: Given information- We have given the letters of the word- HORRAR We have to find a number of ways to…

Q: An oil company is going to issue new ID codes to its employees. Each code will have one letter,…

A: We have given that We have 22 letters (expect W,X,Y,Z) And 10 digits

Q: How many 3 letter words can be made from 10 letters “FGHIJKLMNO” if repetition of letters (b) is…

A: letter words can be made from letters :"FGHIJKLMNO”

Q: For some particular website, the password must start with one of the letters A, B, or C. Then there…

A:

Q: Consider four-letter words to be formed by using the letters: q, w, e, r, t, y, x How many different…

A: We have to find the number of possible four-letter words using the letters q,w,e,r,t,y,x.

Q: How many 5 letter words can be formed if no letter is allowed to be used no more than once in a…

A: It is given that 5 letter words can be formed and also a word here is any combo of letters - it does…

Q: The English alphabet has 26 letters of which 5 are vowels. Consider only 5-letter "words" consisting…

A: Given  26 letters  5 vowels Consider 5-letter "words" consisting of 4 different constants and 1…

Q: How many three-letter "words" can be made from 5 letters "FGHIJ" if repetition of letters (a) is…

A: Given5 letters is "FGHIJ"No.of letters = 5

Q: To enter their home the rouse family enters a 6 character code consisting of 4 letters (uppercase of…

A: We have to find 6 character code consisting of 4 letters (uppercase of lowercase) and 2 digits if…

Q: If a(3, 4) – b(2, 4) = (8, 10), determine a and b.

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Q: plzz help 11) How many words can we build using exactly 4 A's, 4 B's and 4 C's if the first 4…

A: It is given that there are 4A's, 4B's and 4 C's and the first 4 letters cannot be A's and the second…

Q: How many different 3 letter codes can I make that do not contain any repeated letters

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Q: How many 5 digit even numbers can be formed from the digits 1, 2, 3, 4, 5 if no repetition is…

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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: How many different three-letter arrangements can be formed using the letters A, B, C, and D if…

A: The given problem is a question about permutations, a fundamental concept in combinatorics, a branch…

Q: Find the number of permutations of each group of letters. (a) G, E, C, K, o permutations (b) P, Y,…

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Q: How many arrangement of 8 letters taken from 5 vowels and 21 consonants can be made if there has to…

A: 21 consonants and 5 vowels. Given condition, 8 letter words using 5 consonants and 3 vowel.…

Q: A ternary string is an ordered string of characters which consists of digits (0,1, or 2). For…

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Q: A number with 4 digits is formed from the digits 0, 3, 6, 7, 9 without repetition. How many numbers…

A: Total numbers = 5 Since the 6 and 7 are placed next to each other consider them as a single number.…

Q: A universal set U with 66 elements has been partitioned into three subsets, A, B, and C. If B is 2…

A: We use the definition of the size of a set to find the number of elements in the set B. The size of…

Q: 4. How many 6-digit numbers (using 1,2,3, ... ,9) are there if repetition is not allowed? How many…

A: As in the text, two Que 4 and 6 are asked t solve. We shall answer one Que only eg 4• it has also…

Q: How many different 10-letter words (real or imaginary) can be formed from the following letters? Q,…

A: Given that  Number of letters = 10 Letters  =  Q , L , Q , U , A , L , L , A, R , W Number of times…

Q: Determine the number of permutations (arrangements) possible of 7 things taken 3 at a time.

A: We have to determine the number of possible permutations of 7 things taken  at a time.So,

Q: How many license plates can be made if each plate uses three uppercase letters followed by a 3-digit…

A: For first place, you have 26 option, then 25 and then 24.  Then for numberal part, you have 10…

Q: How many strings of ten English letters are there that start with AB and end with Y Z and contain at…

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