Algebra

posted by .

How many possible 9-digit zip codes are possible if the first digit cannot be zero?

  • Algebra -

    8*9^8

  • Algebra -

    90,000

  • Algebra -

    900,000,000 aka 9*10^8

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    use the clues to find the 7th digit mystery number. * Its is between 1 and 2 million * the first three digits are the same the least possible digit is in the thousands place. *the greatest possible digit is in the ones place * the …
  2. probability

    you are to set up a code of consisting of three letters (A to Z) and five numbers (0 to 9). a) how many codes are possible if the letters and numbers can be repeated?
  3. algebra 2

    how many 7-digit phone numbers are possible if the first digit must be non-zero?
  4. MATH ( PROBABILITY)

    Security codes in Fiji are made up of 4 digits. How many different 4-digit codes are possible i)If the first digit cannot be zero. ii)If the first digit cannot be zero and digits cannot be repeated.
  5. math

    it is between 1 and 2 million.the first three digits are the same.the least possible digit is in the thousands place.the greatest possible digit is in the ones place.the hundreds digit is 1 more than the tens digit.the sum of the digits …
  6. st130

    security codes in fiji are made up of 4 digits. how many different 4 digit codes are possible . if the first digit should be one?
  7. Math

    Challenge Write a 6 - digit number that has a 5 in the ten thousand place , a 3 in the thousands place ,a 4 in the tens place , and one digit that is 0.underline the 5,3,4,and the 0 in your number .is this the only number you could …
  8. statistics

    A zip-code is a five-digit number identifying where in the U.S. an address is located. The first four digits in a zip code can be any number 0-9, but the fifth digit cannot be 0. In addition to this, each address has a “plus-four” …
  9. math

    The first digit of a 3-digit telephone area code is 6 or 7. The second digit is 9. How many codes are possible?
  10. Algebra

    In a plan for area​ codes, the first digit could be any number from 2 through 8, the second digit was either 0 or 1​, and the third digit could be any number except 0. With this​ plan, how many different area codes were​ possible?

More Similar Questions