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

You are not logged in.

- Topics: Active | Unanswered

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

1. AB and CD are two chords equidistant from the center. If AB = 6 cm, then CD = ?

(a) 6 cm (b) 3 cm (c) 12 cm (d) None of these

2. The angle in a semicircle is _________________________

(a) A right angle (b) an acute angle (c) an obtuse angle (d) Two right angles

3. Given A = (-7,6), and B = (-3,-2), the midpoint of AB is ________________________

(a) (-5,2) (b) (5,4) (c) (-4,4) (d) (-2,4)

4. The distance of the point (-3,4) from the origin is

(a) 5 units (b) 4 units (c) 3 units (d) 1 unit

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****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

Hi bobbym,

The solutions 1, 3, and 4 are correct. Well done!

5. The largest value is 98, range is 73, then the smallest value is

(a) 73 (b) 25 (c) 171 (d) None of these

6. The probability of getting two heads when tossing a coin twice is

(a) 1/4 (b) 2/4 (c) 3/4 (d) 1

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: 16,037

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

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,969

hi ganesh,

I interpreted Q2 the same way as bobbym: what is the angle at the circumference when the chord is a diameter?

Don't know why; it's just something in the wording that pushes me that way.

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

I did not get that from the question.

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****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

Hi anonimnystefy, bob bundy, and bobbym,

The answer #5 and #6 are correct. Well done!

7. Find the square of 9x[sup]2[/sup]y[sup]4[/sup]z[sup]8[/sup].

(a) 3xy[sup]2[/sup]z[sup]4[/sup]

(b) 3x[sup]2[/sup]y[sup]2[/sup]z[sup]4[/sup]

(c) 9xy[sup]2[/sup]z[sup]4[/sup]

(d} None of these.

8. The greatest common divisor of

is(a) x - 1

(b) x + 1

(c) x[sup]2[/sup] - 1

(d) x[sup]3[/sup] + 1

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****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

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: 23,044

Hi bobbym and anonimnystefy,

The solution #8 is correct. Well done!

9.

__________________(a)

(b)

(c)

(d)

10. Given t[sub]n[/sub] = n[sup]3[/sup] + 1, t[sub]2[/sub] is ______________

(a) 3

(b) 9

(c) 7

(d) 1

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: 16,037

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****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

Hi anonimnystefy and bobbym,

The answers #9 and #10 are correct. Good work!

11. If f(x) = 2x and g(x) = x[sup]2[/sup], f o g (1) is ______________________

(a) 2 (b) 4 (c) 1 (d) 0

12. A point on 3x + 4y < 8 is

(a) (1,1) (b) (2,1) (c) (3,0) (d) (2,4)

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

Hi bobbym,

The answers #11 and #12 are (a). The answer #12 is correct. Good!

13. In a Geometric Progression, t[sub]1[/sub] = 4 and t[sub]2[/sub] = 12, then r = ____________________

(a) 1 (b) 2 (c) 3 (d) 4

14. Given t[sub]n[/sub] = 5n - 2, t[sub]4[/sub] = ________________

(a) 18 (b) 22 (c) 20 (d) None of these

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 23,044

Hi bobbym,

The answers #13 and #14 are correct. Well done!

15. The roots of the equation (x - 3)[sup]2[/sup] = 0 are _______________

(a) 3, 3 (b) 3, -3 (c) 3, 0 (d) -3, 0

16. The value of

is ________________(a) x + y (b) x (c) y (d) 1

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

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: 23,044

Hi bobbym and anonimnystefy,

The answers #15 and #16 are correct. Well done!

17. In a cyclic quadrilateral ABCD, if angle A = 100°, then angle C = ___________________

(a) 100°

(b) 80°

(c) 50°

(d) 40°

18. Angle in a minor segment is ____________________

(a) > 90°

(b) < 90°

(c) = 90°

(d) None of these

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,037

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: 23,044

Hi bobbym and anonimnystefy,

The answers #17 and #18 are

and .Well done!

19. The centroid of the triangle with vertices (0,0), (1,1). and (5,-1) is _____________

(a) (2,0) (b) (0,2) (c) (0,0) (d) (1,1)

20. The equation of the x-axis is ___________

(a) y = 0 (b) x = 0 (c) x = a (d) y = a

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline