Question

10. To which subsets of the real numbers does the number √7 belong?

[] rational numbers
[] irrational numbers
[] whole numbers, integers, rational numbers
[] whole numbers, natural numbers, integers


11. Which sum or difference is equivalent to the following expression?

15x - 20
------------
5


[] 15x - 4
[] 10x - 15
[] 3x - 4
[] 3x - 20

Answer 1

10. √7=irrational numbers

11.

15x - 20

------------   =   15x-4

5