CHAPTER 1 Test 45
Write each set in interval notation and graph the interval.
Perform the indicated operations.
10. 11.
12. 13.
8 # 4 - 32 # 5 - 21 - 12
- 3 # 23 + 1
- 233 - 1 - 1 - 22 + 24
91 - 32 - 1 - 22
10 - 24 + 1 - 62
161 - 52
7 - 42 + 2162 + 1 - 422
- 6 + 14 + 1 - 112 - 1 - 32 10 - 4 # 3 + 61 - 42
5 x|x6- 36 5 x|- 46 x... 26Source: World Almanac and Book of Facts.Mountain Height Trench Depth
Foraker 17,400 Philippine
Wilson 14,246 Cayman
Pikes Peak 14,110 Java -23,376- 24,721
- 32,995
The table shows the heights in feet of some
selected mountains and the depths in feet (as
negative numbers) of some selected ocean
trenches.
14.What is the difference between the
height of Mt. Foraker and the depth of
the Philippine Trench?
15.What is the difference between the height of Pikes Peak and the depth of the Java Trench?
16.How much deeper is the Cayman Trench than the Java Trench?
Find each square root. If the number is not real, say so.
20.Concept Check For the expression , under what conditions will its value be each of
the following?
(a)positive (b)not real (c) 0
21.Evaluate for , , and.
22.Simplify.
23.How does the subtraction sign affect the terms and 6 when
is simplified? What is the simplified form?
Match each statement in Column I with the appropriate property in Column II. Answers may
be used more than once.
III- A.Distributive property
- B.Inverse property
- C.Identity property
- D.Associative property
- E.Commutative property
- F.Multiplication property of 0
- 1 a+b 2 +c= 1 b+a 2 +c
4 # 1 = 4
- 9 + 0 =- 9
13 # 0 = 0
5 x+ 15 x= 15 + 152 x- 2 + 13 + 62 = 1 - 2 + 32 + 6
6 + 1 - 62 = 0
- 4 r 13 r+ 82 - 1 - 4 r+ 62
- 312 k- 42 + 413 k- 52 - 2 + 4 k
k=- 3 m=- 3 r= 258 k+ 2 m^2
r- 21 a