8. Make a generalization based on the numerical sequence below :


      5 = 2 + 3(1)2
    14 =2 + 3(2)2

    29 =2 + 3(2)2

    50 =2 + 3(2)2

A 2 + 3n , n= 1,2,3,…

B 2 + 3n2 , n= 1,2,3,…

C n + 3n2 , n = 1,2,3,…

D n – 2n2 , n = 1,2,3,…



9. Which of the generalization below represents the numerical sequence -2 , -6 , -10 ,… where n= 1,2,3,…

A 2 – 4n

B 3 – 4n

C 2n2 – 1

D -1 – 3n



10. Which of the following is the numerical sequence for 3n2 – 1 with n= 1, 2, 3,…?

A 2, 11 , 26 , 47 ,…

B 4 , 35 , 80 , 143 ,…

C 2 ,11 , 27 , 47 ,…

D 10, 11,26 , 48 ,…

chapter 4 : Mathematical Reasoning

1. Choose a statement.
    A Please
    B 2 + 1 = 4
    C (a + b + c )
    D Dont stand there !

2. " If water boils, the temperature is 100 degree celcius". The above statement is
    A a premise
    B a conclusion
    C an arguement
    D an implication

3. The process of making a conclusion based on the premises is known as
     A logic
     B converse
     C arguement
     D statement

4. " All multiples of six are divisble by 3. 36 is a multiple of 6. Hence, 36 is divisible by 3." Which of the
    following is the premise ?
    A All multiples of 6
    B 36 is divisible by 3
    C 36 is a multiple of 6
    D All multiples divisible by 3

5. " All those who are wearing school uniforms are students. Abu was not wearing the school uniform." What
    is the conclusion ?
    A Abu is a student
    B Abu is not a student
    C Abu does not have a uniform
    D Those who are not wearing school uniform are not students

6. All multiples of 4 are divisible by 2. Eight is multiple of 4, then
    A 8 is divisible by 2
    B 8 is divisible by 4
    C 10 is divisible by 2
    D 8 is not divisible by 4

7.  Premise 1 : All odd numbers are not divisible by 2
     Premise 2 : 13 is an odd number.
    
     Conclusion : _____________________________________

     state the conclusion .
     A 13 is divisible by 2
     B 13 is not divisible by 2
     C 13 is not an even number
     D Odd numbers are not divisible by 2

CHAPTER 3: SET

Math and Logic Puzzles

Math and Logic Puzzles

Significant Figure - OneSchoolWiki

Significant Figure - OneSchoolWiki

chapter 2 : Quadratic expression and equation

solve the following quadratic equations.




1.

(a) x(x-3) = 0

(b) (y+3)(y-1)=0

(c) (m+5)² = 0

(d) (n-2)(2n+1)=0

(e) (2p-3)(2p+7)=0

(f) (4q+5)(3q-2)=0



2.

(a) p²+7p+6=0

(b) q²-9q+18=0

(c) h²+h-30=0

(d) k²+6k-16=0

(e) a²-4a-21=0

(f) b²-8b-48=0



3.

(a) x²=4x

(b) m²-m=12

(c) k(k+1)=3(k+5)

(d) w²/4=w+3

(e) 4(7-e)=e(e-1)

(f) (p+6)²=9



4.

(a) 3r²+10r+8=0

(b) 4x²-8x-21=0

(c) 5p²-13p+6=0

(d) 8a²+18a-5=0

(e) 12h²-11h-15=0

(f) 15n²+2n-8=0



5.

(a) 10x²=9(x+1)

(b) m+5-6/m=0

(c) p²-p=p+20/6

(d) b-1/6-2b-1/5b=0

(e) (2y-3)(2y+3)=16

(f) (6k+7)(k-2)=12k

Solving Quadratic Equations

Solving Quadratic Equations

2. Solve each of the following and give your answer to two significant figures.
a) 36.2 x 4.5 ÷0.6


b) 108 ÷ 1.2 + 17.93

c) 16.5 – 9.8 x 0.07

d) 11.5 x 3.42 – 0.01

e) 0.00867 ÷ 78 x 0.046

f) 0.0023 x 567.9 + 67

chapter 1 : standard form

1) Round off the following numbers according to the significant figures stated in the bracket.
a) 0.004768 [3]                                 g) 0.004508 [3]
b) 0.0476 [6]                                     h) 600.2 [1]
c) 0.98457 [3]                                    i) 0.00307 [2]
d) 0.0078479 [4]                                j) 0.004195 [3]
e) 0.1080 [2]                                      k) 27.83 [2]
f) 0.010083 [4]                                   l) 104.025 [3]