## anonymous one year ago i need help

1. anonymous

@pooja195 @welshfella @Vocaloid @enchanted_bubbles

2. anonymous

3. anonymous
4. amistre64

any thoughts?

5. anonymous

i have no idea but i need help i have two more question and im done with my online school

6. amistre64

it helps if you have an idea to work with ... what are your definitions of a rational number and an irrational number?

7. anonymous

i dont know what they mean

8. amistre64

then you know have a point of study to focus on ... good luck

9. anonymous

Do you still need help?

10. SolomonZelman

$$\rm \LARGE Some~definitions:$$ ------------------------------------------ $$\large\rm \color{blue}{Natural}~numbers$$. $$1$$ , $$2$$, $$3$$, $$4$$, $$5$$, $$6$$, $$7$$... and so on $$\rm Addition:$$ Like any number of workers that can build a house. 0 workers can't do that, nor can 45.7 (because there is no such a thing as 45.7 people) workers do this. A number of workers to make a house has to be a "natural number" see? ------------------------------------------ $$\large\rm \color{blue}{Whole}~numbers$$. $$0$$ , $$1$$ , $$2$$, $$3$$, $$4$$, $$5$$, $$6$$, $$7$$... and so on So the "whole numbers" include everything that "natural numbers" include, BUT, "whole numbers" also include 0. ------------------------------------------ $$\large\rm \color{blue}{Integers}$$. ... $$-5$$ , $$-4$$ , $$-3$$ , $$-2$$ , $$-1$$ , $$0$$ , $$1$$ , $$2$$, $$3$$, $$4$$, $$5$$ ... ((includes everything that whole numbers includes, but also adds on negative numbers - as I showed)) ------------------------------------------ So once you know these, I can start to explain more complicated terms as rational numbers and irrational numbers.

11. SolomonZelman

------------------------------------------ $$\large \color{blue}{\rm Rational}~\rm numbers.$$ this set includes everything that "Integers" includes, but it can also be: 1. Fraction 2. Repeating decimal or Terminating decimal 3. Regular decimal that doesn't go on forever

12. anonymous

SO WHAT DOES THAT MEAN sorry caps

13. SolomonZelman

I am just explaining the terms, well - at least trying to do this....

14. anonymous

so can i copy and paste

15. SolomonZelman

copy and paste what?

16. anonymous

what you say

17. SolomonZelman

I use latex sometimes, so you might not always be able to copy paste it the same way as I have it.

18. anonymous

so what is the answer cause ill never understand

19. anonymous

its too much of a short period of time to learn soo much

20. SolomonZelman

--------------------------------- $$\large \color{blue}{\rm Irrational}~\rm numbers.$$ this set DOES NOT include any of the previous sets. it is a set of numbers that are abstruse (hard to understand) so to speak. 1. Euler numbers $$\bf ($$ $$\pi$$ and $$e$$$$\bf )$$ 2. square roots (or other roots with different powers) IF THESE ROOTS DON'T SIMPLIFY TO A RATIONAL VALUE

21. anonymous

so thats anwer

22. SolomonZelman

so an irrational number would for example be √32

23. SolomonZelman

No, nothing of what i said is the answer.

24. anonymous

oh taht irrational

25. anonymous

whats rational

26. SolomonZelman

All I am doing right now is thta I am explaining the definition of the terms you have to know to do this problem.

27. SolomonZelman

so irrational number - roughly, we can define it this way for now - is a square root of a number (if this number is not 1, 4, 9, 16 25, or any other number that is a perfect square)

28. SolomonZelman

ok, can you classify the following number for me: $$\rm 1)$$ 7.7 $$\rm 2)$$ 7.9 for me please? (Which group/set do they belong to?) options: $$\rm a.$$ natural numbers $$\rm b.$$ whole numbers $$\rm c.$$ integers $$\rm d.$$ rational numbers $$\rm e.$$ irrational numbers

29. anonymous

i belive its c

30. anonymous

right