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#551 2008-01-17 21:38:36

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions

how do you factorize[questionmark]

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#552 2008-01-18 22:14:42

Jai Ganesh
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Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Soluions to #588 to #590.
Excellent, JohnnyReinB! All correct!!!

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#553 2008-01-18 22:25:51

Jai Ganesh
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Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#595. If tanA=1 and sinB=1/√2, what is the value of cos(A+B)?

#596. What are the least ad greatest values of sinA+cosA?

#597. If sinA=cosA and A is acute, then what is the value of tanA-cotA?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#554 2008-01-19 17:53:12

Jai Ganesh
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Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#598. Determine the equation of the line with slope 3 and y-intercept 4.

#599. A straight line makes an angle 45° with the x-axis and passes through the point (3, -3). Find its equation.

#600. Determine the equation of the straight line passing through (-1,2) and having slope 2/7.

#601. Determine the equation of the straight line whose slope is 2 and y-intercept 7.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#555 2008-01-19 18:04:45

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions




those are in slope intercept form.

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#556 2008-01-19 18:11:10

Jai Ganesh
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Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Answers to #598 to #601.
Very well done, JohnnyReinB!!!

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#557 2008-01-19 18:16:52

Jai Ganesh
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Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#602. Find the equation of the straight line perpendicular to the straight line 3x+4y+28=0 and passing through the point (-1,4).

#603. Find the equation of the straight line parallel to 3x+2y=9 and which passes through the point (3, -3).

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#558 2008-01-19 18:23:58

Jai Ganesh
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Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#604. What is the value of

?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#559 2008-01-19 18:24:38

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#560 2008-01-19 18:27:38

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#561 2008-01-19 18:41:39

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Answetr to #603 is correct, JohnnyReinB! Good!

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#562 2008-01-19 18:46:29

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#563 2008-01-19 21:26:27

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Not correct, JohnnyReinB!

#604. What is the angle between the straight lines 2x+3y-9=0 and 3x-2y+10=0.

#605. What is the angle between the straight lines x+2y+5=0 and 2x+4y-5=0.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#564 2008-01-20 02:23:37

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#606. Convert 100° into radian measure.

#607. Convert -320° into radian measure.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#565 2008-01-21 01:52:46

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#608. If 27 kg of corn feeds 42 horses for 21 days, for how many days will 36 kg feed 21 horses?

#609. The surface area of a cube is 24 cm², what is its volume?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#566 2008-01-23 02:21:10

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#610. Of the following sets, which is the one having exactly eight subsets?

(a) {1,2}
(b) {8}
(c) {0,1,2}
(d) {1,2,3,4,5,6,7,8}

#611. If

, then what is
?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#567 2008-01-23 02:39:57

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#612. If the total distance of a journey is 120 km  and If one goes by 60 kmph and comes back at 40 kmph what is the average speed of the journey? (kmph=kilometers per hour)

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#568 2008-01-23 02:42:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#613. Each side of a rectangle is increased by 100%. By what percentage does the area increase?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#569 2008-01-24 01:47:07

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#614. The number of solid spheres each of diameter 6 cm, that could be moulded to form a solid metal cylinder of length 45 cm and diamter 4 cm is ___________.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#570 2008-01-24 02:09:46

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

#615. If

then

#616. Which of the following has a logarithm equal to -2 to the base 10?
(a) -0.01
(b) 0.1
(c) 0.01
(d) 100

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#571 2008-01-24 22:24:05

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions




"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#572 2008-01-24 22:38:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Answers to #609, #610, and #612 are correct!
Very well done, JohnnyReinB!

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

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#573 2008-01-24 23:20:00

JohnnyReinB
Member
Registered: 2007-10-08
Posts: 453

Re: 10 second questions

sorry increased by 300%

"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted" wink

Nisi Quam Primum, Nequequam

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#574 2008-01-25 00:12:00

NullRoot
Member
Registered: 2007-11-19
Posts: 162

Re: 10 second questions

Trillian: Five to one against and falling. Four to one against and falling… Three to one, two, one. Probability factor of one to one. We have normality. I repeat, we have normality. Anything you still can’t cope with is therefore your own problem.

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#575 2008-01-25 01:12:58

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: 10 second questions

Why did the vector cross the road?
It wanted to be normal.

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