Goven
/̵͇̿̿/'̿'̿ ̿
+125|6473|Purdue

Flaming_Maniac wrote:

Goven wrote:

Indiana here, and I could've sworn that it said k-a
No, and that doesn't make any sense since those numbers could be anything.
Well I'll see in december heh
>LOD<Dougalachi
Teh_Complainer
+85|6548|An Hour North of Indy
yep...and i have the SATs to look forward to next year.
Goven
/̵͇̿̿/'̿'̿ ̿
+125|6473|Purdue

>LOD<Dougalachi wrote:

yep...and i have the SATs to look forward to next year.
So you're a junior?
Flaming_Maniac
prince of insufficient light
+2,490|6700|67.222.138.85

>LOD<Dougalachi wrote:

yep...and i have the SATs to look forward to next year.
Have fun!
>LOD<Dougalachi
Teh_Complainer
+85|6548|An Hour North of Indy
very much a junior. got a chance to take them as a sophomore since i was in the top 50 of my class (out of 900).

Edit: spelling

Last edited by >LOD<Dougalachi (2006-10-18 17:23:33)

Goven
/̵͇̿̿/'̿'̿ ̿
+125|6473|Purdue

>LOD<Dougalachi wrote:

very much a junior. got a chance to take them as a sophomore since i was in the top 50 of my class (out of 900).

Edit: spelling
Nice. I'm like in the top .01%
>LOD<Dougalachi
Teh_Complainer
+85|6548|An Hour North of Indy
^^ way to make me feel bad about myself. btw, that would imply that there are around 1000 (maybe 10000) kids in your class.
Shmizmar
Member
+6|6674|Los Angeles
Dude I took the PSAT today too.  I remember that question.  I didn't get it either...
Flaming_Maniac
prince of insufficient light
+2,490|6700|67.222.138.85
Everyone in our school took it as sophmores...
Goven
/̵͇̿̿/'̿'̿ ̿
+125|6473|Purdue

>LOD<Dougalachi wrote:

^^ way to make me feel bad about myself. btw, that would imply that there are around 1000 (maybe 10000) kids in your class.
Actually, there's about somewhere between 300-380 (I don't know exactly)
RTHKI
mmmf mmmf mmmf
+1,736|6730|Oxferd Ohire

Flaming_Maniac wrote:

lmao, I had that exact same problem.

the answer is zero

If something times x say to the power of 2 equals the x to the power of a+1 or in this case now 2, then ak^2=a^3. This means that a=k, so a-k = 0.

Plug in numbers for a and x helps.

k(3)^1 = (3)^2
k(3)=9
k=3=x

I'm pretty sure I did all the math part right, I might be able to help on other problems.
I hope your right. Even though I guessed. I'm a sophomore, I only took it to get out of school. Where I go it's optional for sophomores and required for juniors. Sucks it just for practice where I took it.
https://i.imgur.com/tMvdWFG.png
DesertFox-
The very model of a modern major general
+794|6677|United States of America
I think the problem was xa2 = ax+1 or something. I know the value of x or a or whatever was 2. It amounted to 2(2^2) = 2^3, fairly largely certain.
Jello.01
Member
+46|6601|DFW, Texas
Well, speaking of the PSAT, anyone get the train problem, I said it was 1000 but my friend says it was 1200...
Flaming_Maniac
prince of insufficient light
+2,490|6700|67.222.138.85
I'm absolutely sure the answer was 0, completely positive.

I think I aced the math

Jello.01 wrote:

Well, speaking of the PSAT, anyone get the train problem, I said it was 1000 but my friend says it was 1200...
It was 1200, you only add the length of the train once.

Last edited by Flaming_Maniac (2006-10-18 17:57:28)

bigp66
Member
+63|6541|memphfrica-memphis,TN
what city you from......i took my psat  today and it was awsome cause we got out at 10
Shmizmar
Member
+6|6674|Los Angeles

Jello.01 wrote:

Well, speaking of the PSAT, anyone get the train problem, I said it was 1000 but my friend says it was 1200...
I got 1200, becuase you subtract the length of the train (200m) as it's exiting the tunnel.

EDIT: By the way, I'm in 11th grade.

Last edited by Shmizmar (2006-10-18 17:59:34)

Jello.01
Member
+46|6601|DFW, Texas

Flaming_Maniac wrote:

I'm absolutely sure the answer was 0, completely positive.

I think I aced the math

Jello.01 wrote:

Well, speaking of the PSAT, anyone get the train problem, I said it was 1000 but my friend says it was 1200...
It was 1200, you only add the length of the train once.
Dang, oh well, at least I'm a sophmore, next year will be a little easier

I think I might have subtracted the train twice for some reason...

Section 5 was hard too.. I didn't get to answer many from that section

Last edited by Jello.01 (2006-10-18 18:00:41)

Goven
/̵͇̿̿/'̿'̿ ̿
+125|6473|Purdue

Flaming_Maniac wrote:

I'm absolutely sure the answer was 0, completely positive.

I think I aced the math

Jello.01 wrote:

Well, speaking of the PSAT, anyone get the train problem, I said it was 1000 but my friend says it was 1200...
It was 1200, you only add the length of the train once.
I got 1400
deeznutz1245
Connecticut: our chimps are stealin yo' faces.
+483|6485|Connecticut
17 1/2
Malloy must go
Flaming_Maniac
prince of insufficient light
+2,490|6700|67.222.138.85
The train was going 20 ft/s, and it took it 70 seconds to get through the tunnel. This means from the time it took for the front end to go in and the front end to come out, it must have been 1400 meters long, but it was the time that the front end went in until the back end went out, so you have to subtract 200 from 1400 because for 10 seconds the front end of the train was out but the back end hadn't.

deeznutz1245 wrote:

17 1/2
7.5 was the answer to the bicycle wheel radius.

Last edited by Flaming_Maniac (2006-10-18 18:05:13)

Shmizmar
Member
+6|6674|Los Angeles
Nice!! I got bike wheel radius as 7.5 too.
Goven
/̵͇̿̿/'̿'̿ ̿
+125|6473|Purdue

Flaming_Maniac wrote:

The train was going 20 ft/s, and it took it 70 seconds to get through the tunnel. This means from the time it took for the front end to go in and the front end to come out, it must have been 1400 meters long, but it was the time that the front end went in until the back end went out, so you have to subtract 200 from 1400 because for 10 seconds the front end of the train was out but the back end hadn't.
whoops.
NuShadow
Captain Fantastic
+24|6475|woodbridge, VA

Goven wrote:

Flaming_Maniac wrote:

I'm absolutely sure the answer was 0, completely positive.

I think I aced the math

Jello.01 wrote:

Well, speaking of the PSAT, anyone get the train problem, I said it was 1000 but my friend says it was 1200...
It was 1200, you only add the length of the train once.
I got 1400
me too
DesertFox-
The very model of a modern major general
+794|6677|United States of America
A train leaves Boston at 9:28 AM and heads at a speed of 45 km/h to St. Louis, where it stops and 56 passengers get off, while 34 get on. It then heads to Atlanta where it arrives at 2:40 PM. At the same time, a train leaves New Orleans at a speed of 68 mi/h and heads towards New York City. When and where will they meet?

^^^ Glad there was nothing like that.
Flaming_Maniac
prince of insufficient light
+2,490|6700|67.222.138.85

DesertFox423 wrote:

A train leaves Boston at 9:28 AM and heads at a speed of 45 km/h to St. Louis, where it stops and 56 passengers get off, while 34 get on. It then heads to Atlanta where it arrives at 2:40 PM. At the same time, a train leaves New Orleans at a speed of 68 mi/h and heads towards New York City. When and where will they meet?

^^^ Glad there was nothing like that.
Especially since part of it is in kph and another part is mph.

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