A.w/c set of real # includes pos.intergers but not neg.integers or zero?

b. What kind of # might be used to write elevations below sea level?


c. Which set of real numbers includes 2/3,3/5 and 3.03?


d. When we combine the even numbers and the odd numbers, we get which set of real numbers?

A.w/c set of real # includes pos.intergers but not neg.integers or zero?
A. They're called 'counting numbers' or 'natural numbers'.


B. Negative numbers and zero.


C. Rational numbers.


D. Integers.
Reply:a). Natural numbers are 0 1 2 3 4 5 6. . . . . . . .





b). Negative numbers . . . . .-5 -4 -3 - 2 - 1





c). Rational numbers 2/3 3/5





d). All even and odd numbers are integers


. . . . .- 5 - 4 - 3 - 2 - 1 0 1 2 3 4 5. . . . .
Reply:a.) Natural Numbers


b) Negative


c) Rational


d) Natural (without zero and Negatives), Integers (with them)
Reply:a) this would be the whole numbers , but a better deffinition is Z^+... which is the positive integers





B) here you would us the negitive integers (Z^-) or -1 * (whole numbers)





C) for the set of real numbers that these are a part of is the rational numbers (any number of the form a/b)





d) all even and odd numbers are the integers.