Lesso n Ch eck
Do yo u k n o w H OW?
Name the subset(s) of the real numbers to which each
number belongs.- VlT 2. -7
- Order |g, 4.1, -5 , and Vl6 from least to greatest.
- A square card has an area of 15 in.2. What is the
approximate side length of the card?
1MATHEMATICAL
Do y o u UN DERSTAN D? ( g j PRACTICES
@ 5. Vocabulary What are the two subsets of the real
numbers that form the set of real numbers?- Vocabulary Give an example of a rational number
that is not an integer.
Reasoning Tell whether each square root is rational or
irrational. Explain.- VlOO 8. V(I29
^ Practice and Problem-Solving Exercises
Practice Simplify each expression.- V36 10. VI69
14 V I 15.
- V l 6
MATHEMATICAL
PRACTICESEstimate the square root. Round to the nearest integer.- Vl7 20. V35 21. V242
12. V900
17. VL96
22. V 6 l
See Problem 1.
13 A / M
V 49- V(L25
See Problem 2.- V320
Find the approximate side length of each square figure to the nearest whole unit.- a mural with an area of 18 m 2
- a game board with an area of 160 in.2
- a helicopter launching pad with an area of 3000 ft 2
Name the subset(s) of the real numbers to which each number belongs.
27. o^2 -,0 ,0 OO^19- -2.38
28. 13
33. 457317
29. -1
34. Vl44
30, 100- VTT3
Compare the numbers in each exercise using an inequality symbol.- 5§,V29 38. -3 .1, -^16 39. I V2
- -jy , -0.63 42. VT15,10.72104 ... 43. -§, -0.8
Order the numbers in each exercise from least to greatest- -2, V5, 2.4 46.
- tt, 3, V 8 , 2.9, V 7 49. -2.1,
3, V 3l, VIT, 5.5, -| y
26
13'See Problem 3.- TT
- f
See Problem 4.- 9.6, V96
- V184, 15.56987 ...
See Problem 5.- -6 , V20, 4.3, —y^59
(^50) aw- —— —0 3 v T — — - 6 , o. a, v r , 13, g
20 Ch ap t er 1 Fo u n d at i o n s f o r A l g e b r a