Algebra Help?

Question

Need help with Algebra!!

Determine which of the numbers in the set are (a) natural numbers, (b) integers, (c) rational numbers, and (d) irrational numbers.

{10,4.5,4/3 or 4 over 3, pie symbol, checkmark4, -3.16 with a slash over the 16}

Answer 1

(1) natural numbers: 10, 4.5, square root of 4
(2) integers: 10, 4.5, 4/3, -3.16, 1/16, square root of 4
(3) rational numbers: 4/3, 1/16,
(4) irrational numbers: %

sorry, but I have no idea what your "checkmark 4" means? Is it square root of 4?

Answer 2

NATURAL NUMBERS: 10, checkmark4 (I take this to mean sqrt(4), the square root of 4)

INTEGERS: 10, checkmark4 (which is 2, by the way)

RATIONAL NUMBERS: 10, 4.5, 4/3, checkmark4, -3.16 (with a bar, not a slash, over the 16 (i.e. repeating decimal))

IRRATIONAL NUMBER: pi symbol (not pie!)

Answer 3

This is pretty basic stuff. If you are having trouble with this, you should talk to your teacher.
10, sqrt 4 and 8! is a natural number, integer and rational
4.5, 4/3 are rational and 3.16 repedated.
Pi is irational

Answer 4

10 is a natural number and hence an integer and hence rational
4.5 is rational
4/3 is rational
pi is irrational
-3.16 is rational

Answer 5

10=N
4/3=Rational
4.5=Rational
pi-irrational
don't understand what is checkmark4
-3.16/16 Rational

Answer 6

pi, 3.14159265 irrational, it is infinite and not repeating itself.
check mark4, =square root of 4, which are positive 2, and negative 2, integers.

Answer 7

I think "checkmark4" means sqrt(4)!

So, "checkmark4" is an integer.

Poor asker is gonna be in trouble come test time!