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KING FAHD UNIVERSITY OF PETROLUEM AND MINERALS
Math 001- Term 051
Quiz#1
ID#:
Name:
Sec#:
Sr#:
Q1:Which of the following statements True and which is False, State the reason:
1. If x<0, then x = - x .___________
2. The set 0,1, 2 is closed under addition._________
2
5
3. 6 is the multiplicative inverse of
.____________
5
32
Q2: Name the property of real number or the property equality of the following:
1. if x  y and y  z then x  z
Answer:_________________
 1
2.  4.  w  1.w
Answer:_________________
 4
3.
 x  3 2  2 x  6
Q3: If A  x
Answer:_________________
where x is an odd composite number less than or equal 29
B   y y  x  1 where x a positive integer number divisable by 3 and less than 29
C  x where x is an integer  1  x  6 
1. list A 
B
C
2. find A  B  C 
Q4: write the following expression without the absolute value notation:
1
x
1
4
, 0 x
1
1
8
x  x
8
8
Q5: Simplify the following
1.
4 3 72 
2.
 8 
 
 27 
10

81
3
2/3
 32 
3/ 5

3. 3 x 3 81 x y 4  2 y 3 3 x 4 y 
 3


, , 0.67, 5, 25, 0.12123..., 0.12123
Q6: Given A  4, 0,1, 2,18,19,
2 10


Then A
1.
2.
3.
4.
5.
has_______ Rational numbers.
has_______ Irrational numbers.
has_______ Composite numbers.
has_______ Prime numbers.
has_______ Integer numbers.