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

Question

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?

Answer 1

A. They're called 'counting numbers' or 'natural numbers'.
B. Negative numbers and zero.
C. Rational numbers.
D. Integers.

Answer 2

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. . . . .

Answer 3

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.

Answer 4

a.) Natural Numbers
b) Negative
c) Rational
d) Natural (without zero and Negatives), Integers (with them)