Homework Answers
here for first digit there are 10 choices of an integer ; for second digit there are 9 choices except a 5 and for third digit there are 8 choices except 3 or 4;
hence number of possible arrangements =10*9*8=720
Add Answer to:
A pin-code consist of 3 numbers. We know that the second digit is not a 5...
Pin Encryption Write a block of source code to encrypt a four digit pin number by...
Pin Encryption Write a block of source code to encrypt a four digit pin number by doing the following: 1. Convert the pin number to hexadecimal. 2. Generate two random numbers greater than 1000 and convert them to hexadecimal. 3. Sandwich the converted pin between the two random hexadecimal numbers. Sample Output: Enter a 4 digit pin number to encrypt: 8491 Your encrypted pin number is 1787212b12ef
How many 5-digit odd whole numbers are there if there is no leading zero, the third...
How many 5-digit odd whole numbers are there if there is no leading zero, the third digit must be 6, and the second digit must be greater than zero and divisible by 4. No digits may repeat. PLEASE HELP. Thank you!
Access code for a car security system consist of six digits. The first digit cannot be...
Access code for a car security system consist of six digits. The first digit cannot be nine and the last digit must be odd. How many different codes are available. Note that zero is considered an even number.
Suppose that a "code" consists of 5 digits, none of which is repeated. (A digit is...
Suppose that a "code" consists of 5 digits, none of which is repeated. (A digit is one of the 10 numbers 0,1 2,3 4,5 6,7 8,9.) How many codes are possible?
Suppose we want to form three-digit numbers using the set of digits (0,1,2,3,4,5). For example, 301...
Suppose we want to form three-digit numbers using the set of digits (0,1,2,3,4,5). For example, 301 and 223 are such numbers, but 037 is not. How many such numbers are possible? There are three-digit numbers formed by using the digits {0,1,2,3,4,5).
A thief steals an ATM card and randomly must guess the correct five- digit pin code...
A thief steals an ATM card and randomly must guess the correct five- digit pin code from a 6- key keypad. The number of possible codes is? The probability that the correct code is given on the first try is?
A thief steals an ATM card and must randomly guess the correct six-digit pin code from...
A thief steals an ATM card and must randomly guess the correct six-digit pin code from a 4-key keypad. Repetition of digits is allowed. What is the probability of a correct guess on the first try? The number of possible codes is (Type an integer or fraction. Simplify your answer.) The probability that the correct code is given on the first try is
What is the probability that you guess the correct 4 digit pin of a bank account...
What is the probability that you guess the correct 4 digit pin of a bank account if you know it repeats two numbers at least once?
In the US, telephone numbers are 7-digit long. While in general they have some restrictions, for ...
In the US, telephone numbers are 7-digit long. While in general they have some restrictions, for example, they cannot start with 0 or 1, here we assume that all 7-digit sequences are possible, even 0000000. How many phone numbers: start or end with the two identical digits, for example 0012345, 1234511, or 2222222, contain a 5-digit consecutive substring. For example 0034567, 2567892, or 1234567
In the US, telephone numbers are 7-digit long. While in general they have some restrictions, for...
2) (5pts) A 3-digit number will be formed using the digits 1, 2, 3, 4, 5;...
2) (5pts) A 3-digit number will be formed using the digits 1, 2, 3, 4, 5; using each digit only once. a) How many possible 3-digit numbers are possible? TOTAL: b) Assume three of the digits are randomly chosen and randomly permuted in order to form the 3-digit number. Then each of the possible 3-digit numbers in part a) are equally likely. Find the probability that the 3-digit number ends up being an even number greater than or equal to...
Suppose we want to form three-digit numbers using the set of digits (0,1,2,3,4,5). For example, 301 and 223 are such numbers, but 037 is not. How many such numbers are possible? There are three-digit numbers formed by using the digits {0,1,2,3,4,5).
In the US, telephone numbers are 7-digit long. While in general they have some restrictions, for example, they cannot start with 0 or 1, here we assume that all 7-digit sequences are possible, even 0000000. How many phone numbers: start or end with the two identical digits, for example 0012345, 1234511, or 2222222, contain a 5-digit consecutive substring. For example 0034567, 2567892, or 1234567
In the US, telephone numbers are 7-digit long. While in general they have some restrictions, for...
2) (5pts) A 3-digit number will be formed using the digits 1, 2, 3, 4, 5; using each digit only once. a) How many possible 3-digit numbers are possible? TOTAL: b) Assume three of the digits are randomly chosen and randomly permuted in order to form the 3-digit number. Then each of the possible 3-digit numbers in part a) are equally likely. Find the probability that the 3-digit number ends up being an even number greater than or equal to...
Most questions answered within 3 hours.
-
Instructions Part 1 - Implementation of a Doubly Linked
List Attached you will find the code...
asked 1 hour ago -
You work for a factory making bricks. A coworker accidentally
contaminated one of the bricks with...
asked 1 hour ago -
for python-3
I want to prompt the user to enter their first name and then
Call...
asked 1 hour ago -
Q3 If the formation of a hairpin loop requires a minimum
stem
length of 6 contiguous...
asked 1 hour ago -
Enzymes work by lowering the _____ of a reaction.
Select one:
a. activation energy
b. entropy...
asked 2 hours ago -
Assume three digits are used to represent positive integers and
also assume the following operations are...
asked 2 hours ago -
How many stairs can a 63-kg person climb up with the energy
contained in a candy...
asked 3 hours ago -
Problem 1
A 0.150 kg baseball pitched at 40.0 m/s is hit on a horizontal
line...
asked 3 hours ago -
Variance in reproductive success. The variance among male
reproductive success is 2 and the variance among...
asked 4 hours ago -
To decide your fate, you will play a board game on a simple
board: a linear...
asked 7 hours ago -
1. What are specialty engines? ( )
a. Logical Processors that perform specialized functions
b. An...
asked 8 hours ago -
a. What double precision floating point
number is represented by the following 64-bit binary? Show your...
asked 9 hours ago