how many integers from 0 through 999,999 contain the digit 4 exactly twice? how many integers...

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

Expert Solution

Colby Messinger answered 2 years ago

How many positive integers less than 1,000,000 have exactly one digit that is 7 and the...

How many positive integers less than 1,000,000 have exactly one digit that is 7 and the product of this digit (7) with the sum of other digits is between 50 and 65?

How many 10 digit decimal numbers contain: a-) exactly three 7’s ? b-) at most two...

How many 10 digit decimal numbers contain: a-) exactly three 7’s ? b-) at most two 7’s ? c-) at least two 7’s ? please explain when solving problems. thanks

1. (a) How many integers from 197 to 603 are divisible by 4? (b) How many...

1. (a) How many integers from 197 to 603 are divisible by 4? (b) How many integers from 97 to 995 are divisible by 6? (c) If the largest of 87 consecutive integers is 255 then what is the smallest? 2. Compute the following: (a)9! (b)P(15,8) (c)8! (d)P(3,6)

How many eight-digit positive integers have the sum of digits being even?

how many 4 digit numbers divisible by 5 can be formed from 0,1,3,5,7,9 if repetition is...

how many 4 digit numbers divisible by 5 can be formed from 0,1,3,5,7,9 if repetition is not allowed and 0 and 1 Can not be next to each other. i can do the first part. there are 2 cases case 1, the number ends in zero. 5 x 4 x 3 x 1. but i dont know how to account for the zero and one not being able to be next to each other. i counted 12 possible numbers that...

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

For a 3 digit code with distinct numbers. (0-9) How many combinations to get the code...

For a 3 digit code with distinct numbers. (0-9) How many combinations to get the code (max)? How many combinations if you remember the middle number is 1?

a) How many 3-digit numbers are there? b) How many 3-digit numbers can you make with...

a) How many 3-digit numbers are there? b) How many 3-digit numbers can you make with all three digits different? c) How many of the numbers is part b) are odd?

%) Even integers with non repeating digits. Even integers are integers ending in 0, 2, 4,...

%) Even integers with non repeating digits. Even integers are integers ending in 0, 2, 4, 6, 8. It is easy to see that for 2 digits integers, the number of 2 digits even integers is 45 (i.e. from 10 to 99, 10, 12, 14, …, 96, 98 are the 2 digits even integers); for 3 digits integers, the number of 3 digits even integers is 450 (from 100 to 999, 100, 102, 104, .. , till 994, 996, 998),...

Question