A social security number contains nine digits, such as 045-65-6879. How many different social security numbers can be formed?

Q: Write a prime number and a composite number, both under 100, that are relatively prime.

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Q: In the United States, zip copes are 5 digits. If each digit can be any integer from 0 to 9, how many…

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Q: A U.S. bill was valued at 1.05598 Chinese yuan (Chinese Currency) on a particular day. What was the…

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Q: 7. You need to select a three-character password for a new online bank account. The rules are: you…

A: Permutation - The different arrangements of a given number of things by taking some or all at a…

Q: Your 7 digit student identification number is randomly generated.  If the digits cannot repeat, how…

A: Permutation:  The number of ways to arrange all the elements of a set into some sequence or order.…

Q: If a number is natural, then is it also a whole number?

A: To prove If a number is natural number, then it is also a whole number.

Q: Write US states begin with Letter "M" using roster notation.

A: We want to write US states begin with Letter "M" using roster notation.

Q: A credit company allocates eight digit account number such as 1122-3421 where are the digits 1…

A: A credit company allocates eight digit account number such as 1122-3421 where are the digits 1…

Q: The class mark of the class 90- 120 is

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Q: A penny collection contains twelve 1967 pennies, seven 1968 pennies, and eleven 1971 pennies. If you…

A: Generalized pigeonhole principle For any function f form a finite set X with n elements to a finte…

Q: The number 505050 contains 6 significant digits. OA. True OB. False

A: The digits in a numerical number that convey relevant information about the precision or accuracy of…

Q: Arealtor uses a lock box to store the keys to a house that is for sale. The access code for the lock…

A: The access code contains 4 digits          Digits : 0,1,2,3,4,5,6,7,8,9 The first digit can…

Q: The employees of a company are given a 4-digit identification number. How many different numbers are…

A: GivenThe employees of a company are given a 4-digit identification numberNo.of digits from 0-9=10

Q: Georgia is creating new license plates for 2020. The plate will have 2 letters followed by 6 digits.…

A: There are 26 letters (A-Z) and 10 digits. [0-9]   We can pick each letter in 26 ways.  We can pick…

Q: Find the last digit of the decimal (base 10) expansion of 32823

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Q: A social security number contains nine digits, such as 010-34-3709. How many different social…

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Q: If the population in Germany is 8,000,000 and there are 123,946,567 possible numbers, how many phone…

A: Given Data: The population in Germany is: P=8000000 The total possible numbers is: N=123946567

Q: What is the check digit for the Visa Card 4232 0067 3456 567d?

A: To find the check digit (the value of d). The final digit is the check digit or checksum. It is used…

Q: how many 7 digit phone numbers can be formed in an area code, if the symbols 0 and 1 can not be used…

A: We consider that each digit is selected independently of the others. The first digit can be any of…

Q: How many posible 5-digit zip codes exist if the first number must be from 3 and 9, the last number…

A: We have given that 5-digit zip codes exist if the first number must be from 3 and 9, the last number…

Q: In how many ways can a 4-letter code word be formed from the letters of the word CHECKBOOK?

A: Please comment down for any doubt. I hope my answer helps you.

Q: What does the digit 5 mean in the number 6,924,576

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Q: to use an automated teller machine at a certain bank, you must enter a 6-digit code, using digits…

A: Suppose that the repetition of digits is permitted, there are  choices  for each digit in the -digit…

Q: How many significant digits are in the number 5,000,000?

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Q: Evaluate de V20 /20 – 0²

A: I am going to solve the given problem by using some simple calculus to get the required result.

Q: In Alberta, a 9-1-1 dispatch center receives an average of 3.763 calls per day (that is, per a given…

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Q: To use a debit card, you must enter a four-digit pin number. How many pin numbers are possible if a…

A: Number of ways to select four digit number without repetition

Q: A corporate password consists of four digits, followed by three lower-case letters of the alphabet.…

A: The password is 4 digits long followed by three lower-case letters.

Q: You need to choose a new 8-character password for your account. The password can contain only…

A: The objective of this question is to calculate the total number of possible passwords that can be…

Q: A serial number is to consist of seven digits. Determine the number of serial numbers possible if…

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Q: An ID number consists of 4 uppercase letters followed by 2 digits selected from 1 through 9,…

A: The objective of this question is to find out the total number of possible ID numbers, given that an…