Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym and anonimnystefy,

The answers 53 and 54 are correct. Well done!

55. Given f(x) = 3x + 2, f(0) = ____________________

(a) 3

(b) 2

(c) 5

(d) 8

56.

= __________________(a)

(b)

(c)

(d) None of these

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi ganesh;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi anonimnystefy and bobbym,

The answers 55 and 56 are correct. Well done!

57. If cos θ = 1/2, then θ = ________________

(a) 30[sup]o[/sup]

(b) 60[sup]o[/sup]

(c) 45[sup]o[/sup]

(d) 90[sup]o[/sup]

58. The probability of getting a red card from a pack of cards is ________________

(a) 1/26

(b) 1/13

(c) 1/2

(d) 2/13

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi ganesh;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym and anonimnystefy,

The answers 57 and 58 are correct. Well done!

59. In a Geometric Progression, when r < 1,

= __________________(a) a/1 - r

(b) a/r - 1

(c)

(d) None

60. The total surface area of a hemisphere of radius 5 cm is __________________

(a)

(b)

(c)

(d)

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi ganesh;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym,

The answers 59 and 60 are correct. Well done!

61. Given f(x) = x[sup]2[/sup] and g(x) = 3x, f o g (2) = ______________________

(a) 36

(b) 9

(c) 18

(d) 2

62. Square root of

is _____________________(a) (x - 2)(y + 3)

(b) (x + 2)[sup]2[/sup](y + 3)

(c) (x - 2)[sup]2[/sup](y + 3)

(d) None

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym,

The answer 61 is correct.

63. The roots of the equation x[sup]2[/sup] + x - 6 = 0 are ______________

(a) 3, -2

(b) -3,2

(c) 2,3

(d) None

64. A point on 4x - 3y ≤ 10 is ___________________

(a) (2,0)

(b) (3,-1)

(c) (2,-3)

(d) None

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym and anonimnystefy,

The answers 63 and 64 are correct. Well done!

65. The x intercept of the line 3x + 5y = 15 is ___________________

(a) 5

(b) 3

(c) 15

(d) None

66. The lines 2x + 3y = 5 and 4x + y = 7 are ________________

(a) parallel

(b) perpendicular

(c) same

(d) None

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi bobbym

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym and anonimnystefy,

The answers 65 and 66 are correct. Well done!

67. The value of 1 - tan 45[sup]o[/sup] = _______________

(a) 1 + √3

(b) 2

(c) 0

(d) None of these

68. The variance is 9, then its Standard Deviation is _________________

(a) √3

(b) 3

(c) 81

(d) None of these

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi anonimnystefy and bobbym,

The answers 67 and 68 are correct. Well done!

69. 1 + 3 + 5 + ........ + 11 = __________________

(a)

(b)

(c)

(d)

70. The Curved Surface Area of a hemisphere of radius 'r' units is __________________

(a)

(b)

(c)

(d)

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,845

Hi ganesh;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,349

Hi bobbym and anonimnystefy,

The answers 69 and 70 are correct. Well done!

71. A point on 4x + y < 5 is __________________

(a) (1,1)

(b) (2,0)

(c) (0,7)

(d) None of these

72. Two similar triangles have corresponding sides proportional to 3:4. Then their areas area proportional to __________________

(a) 3:4

(b) 4:3

(c) 9:16

(d) 16:9

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi ganesh

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline