2+8 root 3 is what type of number
Answers
Answer:
WHAT KIND OF NUMBER IS IT?
Natural Numbers {1, 2, 3, 4…..} These are also called Counting Numbers, and
they’re the numbers that can be used for counting
the fingers on your hands or the pieces of candy in a bowl.
They don’t include zero, negatives, or fractions.
Whole Numbers {0, 1, 2, 3, 4…..} These include the natural (counting) numbers,
but they also include zero. They don’t include negatives or
fractions, but they can describe how many cows are in a field
as well as how many cows remain after they all leave.
Integers {…-3, -2, -1, 0, 1, 2, 3...} These include the whole numbers
(natural numbers and zero), and they also include negative
numbers. They don’t include fractions.
Rational Numbers These are any numbers that can be expressed as a fraction,
which includes all integers and most decimals.
Examples include -
1
2
, 208,
2
3
, 0.66,
8
−27
,
−4
1
, -4,
19
8
, 0. 75
Integers are rational numbers because
2 =
2
1
-13 =
−13
1
Fractions are rational numbers so long as their bottom
number (the denominator) is not zero, because dividing
anything by zero is impossible.
Decimals are rational numbers so long as they either
terminate, having a limited number of digits after the
decimal point. For example, 0.25 and .07 are both
terminating decimals. They can also be expressed
as fractions:
0.25 =
1
4
0.07 =
7
100
repeat, having an unlimited number of digits after the
decimal point that repeat in a regular pattern. For
example, the decimals 0.666666… and 0.454545…
are usually written as 0.6 and 0.45, although they can
go on forever. They can also be expressed as
fractions:
0.6 =
2
3
0.45 =
5
11
Irrational Numbers These are any numbers that can’t be written as fractions or as
decimals that terminate or repeat.
For example, the number pi () starts as 3.1415926… and
continues for an infinite number of digits in no particular pattern.
No fraction is equal to exactly that number.
Similarly, the square root of two (√2) can be estimated as 1.4,
but 1.4 * 1.4 does not equal 2 exactly. There is no fraction
equaling any decimal which, multiplied by itself, equals two.
Real Numbers These are all the rational numbers (including natural numbers,
whole numbers, and integers) and all the irrational numbers.
Rational Numbers Irrational Numbers
Integers
Whole Numbers
Natural Numbers
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