MATHEMATICS

What is the value of the expression:

18÷(3²−3)+4×2²

A. 12
B. 14
C. 16
D. 19

19

Evaluate 5×5-5+5 / 5

A. 5

B. 19

C. 21

D. 25

What is the least common multiple (LCM) of 18, 24, and 30?

A. 180
B. 360
C. 240
D. 120

What is the value of:

5/12+3/8−7/18​

A. 29/72
B. 23/72
C. 25/72​
D. 31/72

what is R in {x: xER} if R are Positive integers, negative integers, irrational numbers, and fractions

Real numbers

what is Q in set theory if Q are the set of positive integers (1, 2, 3, ...) along with zero

Rational numbers

if integers are 0, positive, and negative numbers what is the symbol of integers in set theory

Z

If lAl=3, what is 3

the cardinality of 3

given the sets:
A = distinct letters in the word LUZON
B = distinct letters in the word VISAYAS
C = distinct letters in the word MINDANAO
What is the cardinality of AuBuC

12

How many subsets are there in set A if A={C,O,V,I,D}

32

What is the set of the equation 3Im²-mI=2(m-1)?

{1}

which of the following has exactly one real solution?
I. IxI=1
II. x³=1
III.square root of x = 1

II and III

answer the image

A

Which of the following is an example of a finite set?
A) The set of all prime numbers
B) The set of all even numbers less than 20
C) The set of all real numbers between 0 and 1
D) The set of all multiples of 3

B) The set of all even numbers less than 20

What does the set {x∈Z∣−3≤x<2}{x∈Z∣−3≤x<2} represent?
A) {−3,−2,−1,0,1}
B) {−3,−2,−1,0,1,2}
C) All real numbers from −3 to 2
D) {−2,−1,0,1}

A) {−3,−2,−1,0,1}

How many subsets does the set {a,b,c} have?

8

If A={1,2,3} and B={3,4,5}, what is A∪B?

{1,2,3,4,5}

Let the universal set U={1,2,3,4,5}. If A={2,4}, what is A’?

{1,3,5}

If A and B are sets, which is equivalent to (A∩B)’?

A) Ac∩Bc
B) Ac∪Bc
C) A∪B
D) A∩B

A

In a Venn diagram, what does the overlapping area of two circles represent?

Intersection

If ∣A∣=5∣and ∣B∣=7∣, and ∣A∩B∣=3, what is ∣A∪B∣

9

a set containing all possible subsets of a given set, including the empty set and the original set itself

power set

What is the power set of {0,1}?
A) {∅,{0},{1}}
B) {∅,{0},{1},{0,1}
C) {{0},{1}}
D) {0,1}

B

In a class of 50 students, 30 like Math and 25 like Science. If 10 like both, how many like neither

5

If A={1,2} and B={1,2,3,4}}, which statement is true?
A) A⊆B
B) B⊆A
C) A∈B
D) B∈A

Which is a proper subset of {a,b,c}?
A) {a,b,c}
B) {a,b}
C) {a,b,c,d}
D) ∅

B

If X⊇Y and Y={2,4}, which set could be X?
A) {2}
B) {2,4,6}
C) {4}
D) {1,3}

B

How many proper subsets does {p,q} have?
A) 2
B) 4
C) 3
D) 1

C

What is an improper subset of {x,y}

{x,y}

If A⊆B and B⊆C, what must be true?
A) C⊆A
B) A⊆C
C) A∩C=∅
D) B⊇C

B