Download Multiplying and Dividing Real Numbers

Review for mastery part one
#14 The essence of
mathematics is not to
make simple things
complicated, but to
make complicated
things simple. ~S.
Gudder
Homework
Chapter one
test pg. 57
Objectives
Objective 1
Find the correct value for the expression
Objective 2
Evaluate the expression given the value of x
Objectives
Objective 3
Translate each phrase into an expression, equality or
inequality
Objective 4
Identify the domain of the functions
Objectives
Objective 5
Tell whether the relation is a function or not (YES or NO)
Objective 6
Correctly label and identify a property and number set
.
Practice Problem
Evaluate the expression
5(3  4(2  5))
A.28
B. 43
C. 155
D. 245
Practice Problem
Evaluate the expression
1
4 3
3
2
A.1
13
B.
3
C. 12
D. 15
Practice Problem
Evaluate the expression
3
4
(13  (7  2))
A.3
11
B.
4
19
C.
4
D. 6
Practice Problem
Evaluate the expression if x=3
13  x
A.10
B. 16
C. 18
D. 39
Practice Problem
Evaluate the expression if x=3
13  x
A.10
B. 16
C. 18
D. 39
Practice Problem
Evaluate the expression
2

3 18   7  2  


A.  21
B.  11
C.  12
D.  22
Practice Problem
Evaluate the expression if x=4
44  3x
A.32
B. 41
C. 164
D. 173
Practice Problem
Evaluate the expression if x=5
(5  2)
x
A.32
B. 243
C. 324
D. 3093
Practice Problem
What is the correct expression, equation or inequality
based on the following phrase
18 more than 3 times a number r is 27
A.3r  18  27
B. 18  3  r  27
C. 18  3r  27
D. 18  3r  27
Practice Problem
What is the correct expression, equation or inequality
based on the following phrase
The quotient of a number w and 12 is no more than 17
A.12w  17
w
B.
 17
12
w
C.
 17
12
w  12
D.
17
Practice Problem
What is the correct expression, equation or inequality
based on the following phrase
3 times the sum of a number r and 12
A.3r  12  10
B. 3r  12
C. 3r  12
D. 3( r  12)
Practice Problem
Identify the domain of the function
x
y
-1
0
1
3
2
4
3
12
4
15
6
12
A.{0,3,4,12,15,12}
B. {1,1,2,3,4,6}
C. {0,3,8,36,60,72}
Practice Problem
Identify the range of the function
x
y
-4
0
-3
12
-1
0
0
12
1
0
2
12
A.{0,12,0,12,0,12}
B. {4, 3, 1,0,1,2}
C. {0.  36,0,0,24}
• The difference of twice a number k and 8 is 12
A) 2k  8  12
B ) 8  2k  12
C ) 12  8  2k
D ) 12  2(k  8)
A)
• The quotient
of a number
p and 12 is at
least 30
B)
C)
D)
30
p
12
p
 30
12
p
 30
12
p
 30
12
• The sum of 5 and a number r is no more than 15
A) 5  r  15
B ) 5r  5
C ) 5  r  15
D ) 5  r  15
• 4 more than twice a number k is no greater than the
sum of k and 11
A) 2k  11  k  4
B ) 2(k  4)  k  11
C ) 2k  4  k  11
D ) 2k  4  k  11
• The product of 9 and 4 lass than a number y is no
more than 78
A) 9( y  4)  78
B ) 9( y  4)  78
C ) y  4  78
D ) 9( y  4)  78
 The product of 4 and a number w is at most 51
A) 4  w  1
B ) 4  w  51
C ) 4w  51
D )51w  4
• The difference of a number z and 11 is equal to 35
A) 11  z  35
B ) 11z  35
C ) z  11  35
D ) 2( z  11)  35
• The sum of a number b and 3 is greater than 8 and less than 12
A) 8  3  b  12
B ) 8  b  3  12
C ) 8  3  b  12
D ) 8  b  3  12
Solve 2 4  2  8
4
25
A)
2
B ) 255
255
C)
4
245
D)
2
Solve 11  r  2r
3
when r  5
A ) 142
B ) 144
C ) 126
D ) 100
1
2
Solve (6  18)  2
6
A) 12
B) 2
C )  12
D) 0
1
2 2
Solve (21  2 )
2
25
A)
2
625
B)
2
C ) 625
65
D)
2
Solve (12  72)  4
A) 21
B ) 12
C)  2
D ) 18
Review for mastery part one
#14 The essence of
mathematics is not to
make simple things
complicated, but to
make complicated
things simple. ~S.
Gudder
Homework
Chapter one
test pg. 57