Homework Answers
a)
First = 6 possibilities
Total = 17 possibilities
_ _ _ _ _ _ _ _
6 16 15 14 13 12 11 10
Answer = 6*16*15*14*13*12*11*10
b)
Total = 11 possibilities
Length 4 = 11*10*9*8
Length 5 = 11*10*9*8*7
Length 6 = 11*10*9*8*7*6
Answer = 11*10*9*8 + 11*10*9*8*7 + 11*10*9*8*7*6
c)
Total = 17 possibilities
Without numeral = 12 possibilities
Length 5 = 12*16*15*14*13
Length 6 = 12*16*15*14*13*12
Length 7 = 12*16*15*14*13*12*11
Answer = 12*16*15*14*13 + 12*16*15*14*13*12 + 12*16*15*14*13*12*11
--------------------------------------
Hit the thumbs up if you are fine with the answer. Happy
Learning!
Add Answer to:
Consider the following definitions for sets of characters: 2. Numerals (o, 1, 2, 3, 4 Letters...
12. In a certain state, license plates have six characters that may include letters and numerals....
12. In a certain state, license plates have six characters that may include letters and numerals. How many different license plates can be produced if: a letters and numerals can be repeated? b each letter and numeral can be used at most once? c the license plate must have a letter as its first character and each letter or numeral can be used at most once?
Consider passwords of length 8 using symbols from the set of lower case letters: {a, b,...
Consider passwords of length 8 using symbols from the set of lower case letters: {a, b, c, ..., z}. (a) How many such passwords use the letter p exactly two times and the letter q exactly two times? To illustrate, both akpqbqop and quaqpoop satisfy this condition. Include a brief indication of your strategy. (b) How many such passwords use the letter p exactly once and the letter q exactly once and also have letters arranged so the p is...
18. At a certain company, passwords must be from 3-5 characters long and composed of the...
18. At a certain company, passwords must be from 3-5 characters long and composed of the 26 letters of the alphabet, the ten digits 0-9, and the 14 symbols !,@,#,$,%,^,&,*,().-+,{, and ). (As a note, the password does not REQUIRE at least one character of each type. In other words, it is fine if your password doesn't have any digits or is only special symbols.) a. How many passwords are possible if repetition of characters is allowed? [4 points] b....
2. You are making a new account on your favorite social media website. This great new...
2. You are making a new account on your favorite social media website. This great new website offers the most fun way to steal all of your personal information! Long story short, you need a new password. ords can include upper-case letters, lower-case letters, numbers and the symbols you can r. Characters may be repeated. Please do not simplify your answers. get by holding Shift + a numbe (a) Suppose you want to make a 7, 8 or 9-character long...
1. A license plate must be 7 characters long: available characters are uppercase letters (26 possible...
1. A license plate must be 7 characters long: available characters are uppercase letters (26 possible letters for each spot), digits (0-9, so 10 possible numbers for each spot), and special characters!*-& and a blank space (5 possible special characters). A rental car company wants all of its cars' license plates to begin with 4 letters, then have 1 special character, and then 2 digits, e.g. "ABCD 68" is permissible, but "ABCD6 8" is not. a) How many different license...
1. A license plate must be 7 characters long; available characters are uppercase letters (26 possible...
1. A license plate must be 7 characters long; available characters are uppercase letters (26 possible letters for each spot), digits (0-9, so 10 possible numbers for each spot), and special characters!*-& and a blank space (5 possible special characters) A rental car company wants all of its cars' license plates to begin with 4 letters, then have 1 special character, and then 2 digits, e.g. "ABCD 68" is permissible, but " ABCD6 8" is not. (a) How many different...
Consider computer words consisting of six characters each,If the characters are chosen from a b c...
Consider computer words consisting of six characters each,If the characters are chosen from a b c d 2 3 4 5 6, each of which may be used at most once, how many words can be formed: a)with no other restrictions? b)if the third and fourth characters must be digits and the other characters must be letters? c)If there must be 3 digits and 3 letters d)if no two digits and no two letters maybe adjacent?
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings Let s be a str...
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings Let s be a string. The length or size of a string, denoted Is, is the number of characters in s Let s be a string, and i e N such that 0 < ί < sl. We write s[i] to represent the character of s at index i, where indexing starts at 0 (so s 0] is the first character, and...
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings. Let s be a stri...
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings. Let s be a string. The length or size of a string, denoted Is, is the number of characters in s Let s be a string, and ie N such that 0 Si< Is. We write si] to represent the character of s at index i, where indexing starts at 0 (so s(0 is the first character, and s|s -1 is the...
5. A hacker is trying to guess a password. They have worked out that the password has length 8, being a mix of 1 upperc...
5. A hacker is trying to guess a password. They have worked out that the password has length 8, being a mix of 1 uppercase letter (from {A. . . . ,7), 5 lowercase letters (from {a, . . . ,:) and 2 digits (from 10,...,91). They do not know in which order these symbols occur in the password. [In this question, answers may be given as a product of integers, without evaluating further.] a) How many passwords fit this...
12. In a certain state, license plates have six characters that may include letters and numerals. How many different license plates can be produced if: a letters and numerals can be repeated? b each letter and numeral can be used at most once? c the license plate must have a letter as its first character and each letter or numeral can be used at most once?
18. At a certain company, passwords must be from 3-5 characters long and composed of the 26 letters of the alphabet, the ten digits 0-9, and the 14 symbols !,@,#,$,%,^,&,*,().-+,{, and ). (As a note, the password does not REQUIRE at least one character of each type. In other words, it is fine if your password doesn't have any digits or is only special symbols.) a. How many passwords are possible if repetition of characters is allowed? [4 points] b....
2. You are making a new account on your favorite social media website. This great new website offers the most fun way to steal all of your personal information! Long story short, you need a new password. ords can include upper-case letters, lower-case letters, numbers and the symbols you can r. Characters may be repeated. Please do not simplify your answers. get by holding Shift + a numbe (a) Suppose you want to make a 7, 8 or 9-character long...
1. A license plate must be 7 characters long: available characters are uppercase letters (26 possible letters for each spot), digits (0-9, so 10 possible numbers for each spot), and special characters!*-& and a blank space (5 possible special characters). A rental car company wants all of its cars' license plates to begin with 4 letters, then have 1 special character, and then 2 digits, e.g. "ABCD 68" is permissible, but "ABCD6 8" is not. a) How many different license...
1. A license plate must be 7 characters long; available characters are uppercase letters (26 possible letters for each spot), digits (0-9, so 10 possible numbers for each spot), and special characters!*-& and a blank space (5 possible special characters) A rental car company wants all of its cars' license plates to begin with 4 letters, then have 1 special character, and then 2 digits, e.g. "ABCD 68" is permissible, but " ABCD6 8" is not. (a) How many different...
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings Let s be a string. The length or size of a string, denoted Is, is the number of characters in s Let s be a string, and i e N such that 0 < ί < sl. We write s[i] to represent the character of s at index i, where indexing starts at 0 (so s 0] is the first character, and...
2. 9 marks] Strings. Consider the following definitions on strings Let U be the set of all strings. Let s be a string. The length or size of a string, denoted Is, is the number of characters in s Let s be a string, and ie N such that 0 Si< Is. We write si] to represent the character of s at index i, where indexing starts at 0 (so s(0 is the first character, and s|s -1 is the...
5. A hacker is trying to guess a password. They have worked out that the password has length 8, being a mix of 1 uppercase letter (from {A. . . . ,7), 5 lowercase letters (from {a, . . . ,:) and 2 digits (from 10,...,91). They do not know in which order these symbols occur in the password. [In this question, answers may be given as a product of integers, without evaluating further.] a) How many passwords fit this...
Most questions answered within 3 hours.
-
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 11 minutes ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 1 hour ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 1 hour ago -
implement a program that reads a number of rows and a symbol.
The program will draw...
asked 1 hour ago -
Assume that when adults with smartphones are randomly selected,
45% use them in meetings or classes....
asked 1 hour ago -
Determine the number of formula units of
Na2SO4 and moles of oxygen contained in 8.11
moles...
asked 2 hours ago -
Explain in steps on the following code
What would be the output when executed
using System;...
asked 2 hours ago -
Given the information in the table, which of the following
statements is CORRECT?
Stock A
Stock...
asked 2 hours ago -
Write MARIE assembly language programs that do the following:
Write a program that inputs an integer...
asked 2 hours ago -
Explain an understanding of services and protocols.
Explain the job of DNS.
Explain the three email...
asked 2 hours ago -
(As soon as possible) Balance each of the following equations
according to the half-reaction method:
H2O2(aq)...
asked 2 hours ago -
A thin rod with a mass of 3.5kg and a length L=1.5 m is oriented
horizontally....
asked 2 hours ago