Math Problems

miss_poet · 05-02-2003, 07:57 PM

This will probably get deleted

But I am making this as a Math Problem thread. Here, you can post your math problems if you need help, or just stump other people with your hardest brain teasers! I will start off. Find the LARGEST 3-DIGIT NUMBER. You may use exponents, etc. Good luck!

Estel13 · 05-02-2003, 11:27 PM

I don't know.
How about.... -a(x - 3)-4 if a= -6 and x= 8.
This is pretty easy. It's from Algebra I.

Sminty_Smeagol · 05-02-2003, 11:38 PM

well... if a= -6 and it was -a, would that mean 6 (double negative)? or was that a typo or something?

if double negative, 26, right?

What's 1+2+3+4+5+........... all the way to +100?

***IronParrot*** · 05-03-2003, 12:27 AM

The largest 3-digit number? Isn't that just 999?

Or am I completely missing the point here?

// is very tempted to put up his university-level calculus problems

Sminty_Smeagol · 05-03-2003, 12:30 AM

lol yeah really, right?

We could get my dad on here... he is owns some electrical engineer consulatant company... sometimes he sits there in church and works out all these complicated math and diagram stuff... geezus. I, on the other hand, can't multiply (you'd think by 8th garde one would know how to multiply? I think im retarded)

***IronParrot*** · 05-03-2003, 12:35 AM

That's nothing. I can't add.

On the other hand, the answer to your problem is 1+2+3+4+5+...+100 = 5050. And yes, I did that without a calculator.

Sminty_Smeagol · 05-03-2003, 12:50 AM

Hehe... how'd you do it? did you actually do 1+2+3... or did you do 1+100 = 101 2+99=101 3+98=101 x 50?

***IronParrot*** · 05-03-2003, 02:06 AM

The summation formula for 1+2+3+...+n actually reduces to (n+1)n/2

In this case, 100*101/2 = 50*101 = 5050

Elven Archer · 05-03-2003, 04:27 AM

111,111,111 x 111,111,111

the answer is kinda neat.

Iboen · 05-03-2003, 04:34 AM

AAAAAAAHHHHHHHHHHHHH!!!!!!! i hate maths. take it away! take away! PLEASE! i beg u. (only joking by the way.)

congressmn · 05-03-2003, 04:57 AM

Quote:

Originally posted by IronParrot
The summation formula for 1+2+3+...+n actually reduces to (n+1)n/2

In this case, 100*101/2 = 50*101 = 5050

i loved arithmetic progression. we had that back in 9th grade. in india that is.

cassiopeia · 05-03-2003, 06:27 AM

Hey, now here's a thread where I might actually know some answers! I love calculus (I know that is scary). It's funny how people think your smart when you study maths. I am doing third year maths at uni and I really don't feel smart. And I probably *should* be doing my structures assignment that's due on Monday instead of hanging out at the 'moot.

Hey, IP, you can put up your problems, see if I've actually aborbed anything over the last few years.
All right, here's a sample from my assignment (I've think I've gotten the right answer):
Evaluate the following limit:
The limit as n tends to infinity of (n-sqrt(n+a)*sqrt(n+b))
Go on, I dare you to try it!

Linaewen · 05-03-2003, 06:43 AM

Oh, I wish I could. Unfortunately:
a) I can't tackle uni maths, as I am still tackling Maths Methods 1 & 2 (Logarithms- not too bad)
b) I've had enough of maths for today. Tomorrow I have tuition- even more! Yay!

BTW: I don't think 999 is the biggest 3 digit she may have been referring to. She said you could use exponentials, etc... (do they count as digits?)

Lalaith · 05-03-2003, 06:48 AM

Proud of you Lin. You have studied to today.

Linaewen · 05-03-2003, 06:52 AM

Quote:

Originally posted by Lalaith
Proud of you Lin. You have studied to today.

I did, I did! Now tomorrow, I will have to do Probability (ugh), Linear Functions, Quadratic functions probably as well, and more Logarithms. Add to that Science (major revision), Biology (Faeces! Wooo!) and a billion other things....

cassiopeia · 05-03-2003, 06:53 AM

Quote:

Originally posted by Linaewen
Oh, I wish I could. Unfortunately:
a) I can't tackle uni maths, as I am still tackling Maths Methods 1 & 2 (Logarithms- not too bad)
b) I've had enough of maths for today. Tomorrow I have tuition- even more! Yay!

BTW: I don't think 999 is the biggest 3 digit she may have been referring to. She said you could use exponentials, etc... (do they count as digits?)

Ah, Maths Methods. So very easy...

Are you going to do Specialist Maths next year, Linaewen? Very icky.

Well, 999 is the largest 3 digit number. Maybe she meant find the largest number using three digits and exponents.

Linaewen · 05-03-2003, 06:58 AM

Quote:

Originally posted by cassiopeia
Ah, Maths Methods. So very easy... Are you going to do Specialist Maths next year, Linaewen? Very icky.
Well, 999 is the largest 3 digit number. Maybe she meant find the largest number using three digits and exponents.

*sticks out tongue* Shush, you. No, I'm not doing spesh next year. I'm in year 10 - doing Methods 1 &2. Next year, I'm doing Methods 3 &4 and General Advanced or sommat. Then, year 12 I will do Specialist. Woooo! Hard work! Also doing Biol, chem, Indonesian, English...

miss_poet · 05-03-2003, 08:07 AM

Quote:

Originally posted by IronParrot

On the other hand, the answer to your problem is 1+2+3+4+5+...+100 = 5050.

I am sorry, but that is incorrect. That uses over 100 digits, not THREE. Only use 3 digits. Would you like to know the answer, or keep guessing because none of you are near close?

miss_poet · 05-03-2003, 08:10 AM

Quote:

Originally posted by Linaewen
BTW: I don't think 999 is the biggest 3 digit she may have been referring to. She said you could use exponentials, etc... (do they count as digits?)

Actaually, yes. Exponents or to the ___th power do count as digits, and you can only use 3 digits

Lalaith · 05-03-2003, 10:07 AM

Quote:

Originally posted by Linaewen
I did, I did! Now tomorrow, I will have to do Probability (ugh), Linear Functions, Quadratic functions probably as well, and more Logarithms. Add to that Science (major revision), Biology (Faeces! Wooo!) and a billion other things....

do you have all the exams at the same time?

05-02-2003, 07:57 PM	#1
miss_poet Enting Join Date: Apr 2003 Location: Rivendell :-) Posts: 68	Math Problems This will probably get deleted But I am making this as a Math Problem thread. Here, you can post your math problems if you need help, or just stump other people with your hardest brain teasers! I will start off. Find the LARGEST 3-DIGIT NUMBER. You may use exponents, etc. Good luck! __________________ As I look into the sky and sit and watch the stars I think of you. I wonder if you remember me the way I was or the way I am now. I know I will always keep a place for you in my heart. Even though the shadows fall and the darkness enters you will always be with me. I remember one thing about you. Your eyes. I used to look in them like pools of blue water. I could stare at them forever like the dark blue sky on a cloudy night. As I sit here still watching the stars I think of you, but the one thing I remember is your eyes.

05-02-2003, 11:27 PM	#2
Estel13 RPG-aholic Psycho Join Date: Jan 2003 Location: Final Fantasy Posts: 733	I don't know. How about.... -a(x - 3)-4 if a= -6 and x= 8. This is pretty easy. It's from Algebra I. __________________

05-02-2003, 11:38 PM	#3
Sminty_Smeagol Manic Cardboard-Box Dweller Join Date: Aug 2002 Location: In a house Posts: 1,071	well... if a= -6 and it was -a, would that mean 6 (double negative)? or was that a typo or something? if double negative, 26, right? What's 1+2+3+4+5+........... all the way to +100? __________________ I love the fishes.

05-03-2003, 12:27 AM	#4
*IronParrot* Fowl Administrator Join Date: Dec 1999 Location: Calgary or Edmonton, Canada Posts: 53,420	The largest 3-digit number? Isn't that just 999? Or am I completely missing the point here? // is very tempted to put up his university-level calculus problems __________________ All of IronParrot's posts are guaranteed to be 100% intelligent and/or sarcastic, comprising no genetically modified content and tested on no cute furry little animals unless the SPCA is looking elsewhere. If you observe a failure to uphold this warranty, please contact a forum administrator immediately to receive a full refund on your Entmoot registration. Blog: Nick's Café Canadien

05-03-2003, 12:30 AM	#5
Sminty_Smeagol Manic Cardboard-Box Dweller Join Date: Aug 2002 Location: In a house Posts: 1,071	lol yeah really, right? We could get my dad on here... he is owns some electrical engineer consulatant company... sometimes he sits there in church and works out all these complicated math and diagram stuff... geezus. I, on the other hand, can't multiply (you'd think by 8th garde one would know how to multiply? I think im retarded) __________________ I love the fishes.

05-03-2003, 12:35 AM	#6
*IronParrot* Fowl Administrator Join Date: Dec 1999 Location: Calgary or Edmonton, Canada Posts: 53,420	That's nothing. I can't add. On the other hand, the answer to your problem is 1+2+3+4+5+...+100 = 5050. And yes, I did that without a calculator. __________________ All of IronParrot's posts are guaranteed to be 100% intelligent and/or sarcastic, comprising no genetically modified content and tested on no cute furry little animals unless the SPCA is looking elsewhere. If you observe a failure to uphold this warranty, please contact a forum administrator immediately to receive a full refund on your Entmoot registration. Blog: Nick's Café Canadien

05-03-2003, 12:50 AM	#7
Sminty_Smeagol Manic Cardboard-Box Dweller Join Date: Aug 2002 Location: In a house Posts: 1,071	Hehe... how'd you do it? did you actually do 1+2+3... or did you do 1+100 = 101 2+99=101 3+98=101 x 50? __________________ I love the fishes.

05-03-2003, 02:06 AM	#8
*IronParrot* Fowl Administrator Join Date: Dec 1999 Location: Calgary or Edmonton, Canada Posts: 53,420	The summation formula for 1+2+3+...+n actually reduces to (n+1)n/2 In this case, 100101/2 = 50101 = 5050 __________________ All of IronParrot's posts are guaranteed to be 100% intelligent and/or sarcastic, comprising no genetically modified content and tested on no cute furry little animals unless the SPCA is looking elsewhere. If you observe a failure to uphold this warranty, please contact a forum administrator immediately to receive a full refund on your Entmoot registration. Blog: Nick's Café Canadien

05-03-2003, 04:27 AM	#9
Elven Archer Elven Warrior Join Date: May 2002 Location: America! Posts: 480	111,111,111 x 111,111,111 the answer is kinda neat. __________________ "In three words I can sum up everything I've learned about life: 'it goes on'." ~robert frost

05-03-2003, 04:34 AM	#10
Iboen Hobbit Join Date: Feb 2003 Location: Cheshire, UK... w00tage! Posts: 43	AAAAAAAHHHHHHHHHHHHH!!!!!!! i hate maths. take it away! take away! PLEASE! i beg u. (only joking by the way.) __________________ Three rings for the Elven-kings under the sky, Seven for the Dwarf-lords in their halls of stone, Nine for Mortal Men doomed to die, One for the Dark Lord on his throne In the land of Mordor where the shadows lie. One Ring to rule them all, One ring to find them, One Ring to bring them all and in the darkness bind them, In the land of Mordor where the Shadows lie.

05-03-2003, 06:27 AM	#12
cassiopeia Viggoholic Join Date: Mar 2002 Location: Australia Posts: 1,749	Hey, now here's a thread where I might actually know some answers! I love calculus (I know that is scary). It's funny how people think your smart when you study maths. I am doing third year maths at uni and I really don't feel smart. And I probably should be doing my structures assignment that's due on Monday instead of hanging out at the 'moot. Hey, IP, you can put up your problems, see if I've actually aborbed anything over the last few years. All right, here's a sample from my assignment (I've think I've gotten the right answer): Evaluate the following limit: The limit as n tends to infinity of (n-sqrt(n+a)sqrt(n+b)) Go on, I dare you to try it! __________________ Kids, you tried your best and you failed miserably. The lesson is, never try. Last edited by cassiopeia : 05-03-2003 at 06:28 AM.*

05-03-2003, 06:43 AM	#13
Linaewen Fair Dinkum Join Date: Mar 2003 Location: Houston, TX Posts: 2,319	Oh, I wish I could. Unfortunately: a) I can't tackle uni maths, as I am still tackling Maths Methods 1 & 2 (Logarithms- not too bad) b) I've had enough of maths for today. Tomorrow I have tuition- even more! Yay! BTW: I don't think 999 is the biggest 3 digit she may have been referring to. She said you could use exponentials, etc... (do they count as digits?)

05-03-2003, 06:48 AM	#14
Lalaith The Elvish Temptress Join Date: Jan 2003 Location: Vienna, Austria Posts: 3,055	Proud of you Lin. You have studied to today. __________________ What I am and what I would are as secret as maidenhead.

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