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Does the numbers on the y axis get smaller as you travel up?
This depends on your definition of smaller. Each number on the y-axis is greater than the one below it. The concept of smaller could refer to magnitude, though. So for example, if you start at -5 and move up going to -4: -4 is smaller in magnitude than -5 (less negative), but it is greater than -5.
How many natural numbers up to 5000 are perfect cubes?
The cube root of 5000 is approx 17.1 So the numbers 1 to 17 have cubes which are smaller than 5000 that is, there are 17 such numbers.
What are the two numbers that add up to 2 but when the smaller number is subtracted from the larger number the answer is 1?
3
Is the set of prime numbers well defined?
The set is well defined. Whether or not a given integer belongs to the set of prime numbers is clearly defined even if, for extremely large numbers, it may prove impossible to determine the status of that number.
Why do boxes get smaller as you go up in a pyramid of numbers?
The pyramid usually get thinner as you go up it because if you start off with one producer and 8 consumers there will be less secondary consumers because then there will be more food. I hope this helped!
