Easy Algebra Step-by-Step

Numbers of Algebra 13

Exercise 1

For 1–10, list all the sets in the real number system to which the given number

belongs. (State all that apply.)

1. 10


2. 064

3.

8

125

3

4. −π


5. −^1000


6. 2
   7. −^3
   4
   8. −^9
   4
   9. 1
   10.^30. 001

For 11–20, state the property of the real numbers that is illustrated.

11.

1

4

⎛ ⋅ 1500

⎝⎜

⎛⎛

⎝⎝

⎞

⎠⎟

⎞⎞

⎠⎠

∈ real numbers

12.^2
5

3

4

3

4

2

5

+=+=

13. 43 1
    43

⋅= 1

14.^13

1

3

⎝⎛⎛⎝⎝⎛⎜ + ⎞⎠⎟⎞⎞⎠⎠ is a real number

15. 43 +( 727 54 ) (( 4373 )+ 25
    16. 60 ( 10 + 3 )= 600 += 180180 780
    17. −+^4141 =^0
    18. −⋅^99900 =
    19. 063
    4

4

3

06

3

4

4

3

⎛⎝⎛⎛⎝⎝⎜ 6 ⋅ ⎞⎠⎟⎞⎞⎠⎠ = (^006) ⎝⎛⎝⎛⎛⎝ ⋅ ⎞⎠⎟⎞⎞⎠⎠
20. ( 90. (^7575) )( (^1919) ) 070 5