1a) How many five digit number can be written with the digits 1,2,3,4 if there is...

1a) How many five digit number can be written with the digits 1,2,3,4 if there is an even number of twos?

1b) How many five digit number can be written with the digits 1,2,3,4 if two can be used either 4 times, or none?

Expert Solution

orchestra answered 1 year ago

how many five digit numbers include the digits 4 or 6 or both?

How many base 10 numbers have five digits? How many five digit numbers have no two...

How many base 10 numbers have five digits? How many five digit numbers have no two consecutive digits equal? How many have at least one pair of consecutive digits equal?

1a. An ATM requires a four-digit PIN, using the digits 0-9. How many PINs have no...

1a. An ATM requires a four-digit PIN, using the digits 0-9. How many PINs have no repeated digits? 1b. How many ways can president and vice president be determined in a club with twelve members? 1c. A security team visits 12 offices each night. How many different ways can the team order its visits? 1d. In a certain lottery you select seven distinct numbers from 1 through 39, where order makes no difference. How many different ways can you make...

Question1: How many of the 5-digit numbers that can be written with the numbers 1, 2,...

Question1: How many of the 5-digit numbers that can be written with the numbers 1, 2, 3, 4 contain both numbers 1 and 2? question2: 3 married couples shown as a1a2, b1b2, c1c2 want to sit in a row. How many different ways can these married couples sit in a row, without a husband and a wife from the same couple coming together?

1. A) How many three-digit numbers are there for which the sum of the digits is...

1. A) How many three-digit numbers are there for which the sum of the digits is at least 25? B) How many three-digit numbers can be formed if only odd numbers are allowed to be re-used Please combinatorics principles where applicable.

Question: How many even four-digit numbers can be formed from the digits 0,1,2,5,6 and 9. If...

Question: How many even four-digit numbers can be formed from the digits 0,1,2,5,6 and 9. If each digit can be used exactly once. Note: Using the rule of multiplication, solve the question elaborating and explaining each step in detail for my better understanding.

a. How many 3-digit numbers can you make using the digits from the set of (3,...

a. How many 3-digit numbers can you make using the digits from the set of (3, 4, 5, 6, 8, 2, 7) without repetitions? b. How many numbers can be made with the digits from the set of (0, 3, 5, 7, 8, 4, 9), which are greater than 0 and less than a thousand (repetitions are allowed)?

How many valid 3 digit numbers can you make using the digits 0, 1, 2 and...

How many valid 3 digit numbers can you make using the digits 0, 1, 2 and 3 without repeating the digits? How about with repeating?

How many even 4-digit numbers can be formed from the digits 1, 2, 3, 6, and...

How many even 4-digit numbers can be formed from the digits 1, 2, 3, 6, and 9 with no repetitions allowed? (Hint: Try filling the units place first.)

How many three-digit numbers can be formed from the digits 0,1, 2, 3, 4, 5, 6,...

How many three-digit numbers can be formed from the digits 0,1, 2, 3, 4, 5, 6, 7, and 8 if each digit can be used only once? I got this: 448 How many are greater than 330? <- I don't understand how to answer this. I have looked up the answer and could probably figure it out, but please explain where the numbers you are multiplying are coming from. I want to learn how to answer this type of question...

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