Population of the united states = 300,000,000
number of zip codes in the us = 10,000
number of days in a year = 300
assume also that each person lives for exactly 100 years
finally assume that all distributions are perfectly uniform.
how many people in the us share the same zip code and birth date (including birth year).

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?