A gate has a standard key pad with the digits 0 through 9. How many possible code combinations are there if the code is 6 digits long. There are different code combinations.
Number of digit options for any one digit of the combination = 10
Number of digits in the combination = 6
Number of different code combinations = 106
= 1,000,000
A gate has a standard key pad with the digits 0 through 9. How many possible code combinations are there if the code is...
How many different 10 digit telephone combinations are possible if they start with 324 or 345 and the digits are allowed to repeat?
A. To use an automated teller machine at a certain bank, you must enter a 4-digit code, using the digits 1–9. How many 4-digit codes are possible if repetition of digits is permitted? B. If a club consists of 13 members, how many different arrangements of president, vice-president, and secretary are possible?
Problem 3.1 If each of the 10 digits 0-9 is chosen at random, how many ways can you choose the following numbers? (a) A two-digit code number, repeated digits permitted. (b) A three-digit identification card number, for which the first digit cannot be a 0. Repeated digits permitted. (c) A four-digit bicycle lock number, where no digit can be used twice (d) A five-digit zip code number, with the first digit not zero. Repeated digits permitted.
How many strings of 10 decimal digits are there that contain the following combinations of numbers? Show your work. You may leave your answer in terms of an expression involving factorials/exponents. One 0, four 2’s, and five 8’s Exactly one 1, two 3’s, and one 7 (the other six digits can be anything
A computer password is required to be 9 characters long. How many passwords are possible if the password requires 2 letter(s) followed by 7 digits (numbers 0-9), where no repetition of any letter or digit is allowed? There are _________ possible passswords.
A lock on a lab door has buttons numbered 0 through 9. The right code for opening the lock is 8542. Also, if on three consecutive attempts, a wrong code (a code is a combination of 4 ordered distinct digits) is entered, then a burglar alarm is let off. You forgot the right code, but remember that the code consists of 4 distinct digits. So you keep on trying one code after another without replacement. Compute the probability that you...
how many integers from 0 through 999,999 contain the digit 4 exactly twice? how many integers from 1 through 1000000 contain the digits 6 at least once
How many different combinations are possible for a 10 bp DNA primer? Label all of the enzymes in the diagram below. Also, be sure to label the leading and lagging strands and the Okazaki fragments. (0.5 pt.) inio in
Question 5# (Combinations, including stars and bars') Problem: How many PINs have digit suam 20? (A PIN is string abcd of 4 decimal digits eg 6806) As a first attempt at answering this: (a) How many different solutions in non-negative integers has the equation a+b+c+d-20? Hint: 20 stars and 3 bars. The count in (a) is much too big for our problem because it includes many solutions that contain non-decimal digits; ie. values of a, b, c or d that...
12. A diploid organism has a total of 24 chromosomes. Assuming all possible chromosome combinations are viable: If a mutant tetraploid version of this organism was created how many chromosomes would it have? If a mutant version of this diploid organism was monosomic for chromosome 9 how many chromosomes would it have? A. 96; 25 B. 96,23 C. 48,23 D. 48; 25 In a diploid organism 2n = 6, and there are two long, two intermediate, and two short chromosomes....