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 ,…
Saturday, April 24, 2010
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
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
Saturday, March 6, 2010
Wednesday, March 3, 2010
Tuesday, March 2, 2010
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
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
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