help guys!! (Math related)
Register     Acceptable Use Policy     FAQ     Search     Login :: Control Panel :: Log Out  
High Lifter
[All Forums]     [Most Popular]     [HL Related]     [OEM]     [Swap Shop]     [Scott's Pics]     Chat Chat     Inbox PM Inbox  
Keyword Search Keyword Search
2003 Honda Rincon On Sale Now! December 8th Second Chance Cyber Monday Sale!
Logged in as: Guest

help guys!! (Math related)

 
  Printable Version
View related threads: (in this forum | in all forums)

Users viewing this topic: none
All Forums >> [Most Popular Discussions] >> The MUD Hole >> help guys!! (Math related) Page: [1] 2 3 4 5   next >   >>
Login
Message << Older Topic   Newer Topic >>
help guys!! (Math related) - 10/2/2008 7:31:59 PM   
HONDA 4x4


Posts: 554
Joined: 5/7/2006
From: Leonville, LA
Status: offline 		okay so i have this bonus quiz due at midnight and i dont know if i have the right answer for the first one and dont know how to do the second one. if someone can work these out and give me the answers i would be very much appreciative.

#1



A town's population is 2000 in 1990.  By 1995, the population had decayed exponentially to 1248 people.
a) Write a function that models the population of the town as a function of the number of years since 1990.
b) What was the population in 2000?
c) When did the population fall below 1000?

#2
A bacteria population grows by 17% every 12 hours.  How long will it take to double?


_____________________________

Honda Fourtrax 300

2'' HL Lift Kit
25'' Swamplites
Red/White Strobes
Intake Snorkel
Exhaust Snorkel
Stereo Box
Backup/Spotlight
quote:

ORIGINAL: C1iffBurton

BRUTE750ii could quite possibly be the most hated man on highlifter

Post #: 1
RE: help guys!! (Math related) - 10/2/2008 7:37:29 PM   
HaussCatGrizz


Posts: 3363
Joined: 10/31/2006
From: Whitesville,ky
Status: offline 		24hrs to double.... for #2

_____________________________

TEAM RUBBERBAND BOYZ!

06 Camo Grizzly, Rear Bumper, HMF Swamp SERIES with swamp snorkel, Dyno-jet kit, 28" Zillers on black type 7's,HL Lift Springs, Uni Airfilter, Fully Snorkeled- Custom Camo , Relocated Tripple Flow Radiator, Black Diamond plate Cv Boot Guards , Diamond plate warning labels
http://community.webshots.com/user/hausscat
http://www.youtube.com/results?search_query=hausscatgrizz

(in reply to HONDA 4x4)
Post #: 2
RE: help guys!! (Math related) - 10/2/2008 7:57:37 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline 		I used to know how to do that stuff back in HS but now im in college and forgot it. lol o well.....I remeber it isnt that hard hold on let me think. ^^im pretty sure the answer above me is wrong though for #2

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to HaussCatGrizz)
Post #: 3
RE: help guys!! (Math related) - 10/2/2008 7:59:44 PM   
HONDA 4x4


Posts: 554
Joined: 5/7/2006
From: Leonville, LA
Status: offline 		yeah it is...you have to do something like half life formula for it...instead of 1/2 its 2


_____________________________

Honda Fourtrax 300

2'' HL Lift Kit
25'' Swamplites
Red/White Strobes
Intake Snorkel
Exhaust Snorkel
Stereo Box
Backup/Spotlight
quote:

ORIGINAL: C1iffBurton

BRUTE750ii could quite possibly be the most hated man on highlifter


(in reply to camogrizz51)
Post #: 4
RE: help guys!! (Math related) - 10/2/2008 8:00:28 PM   
neverrideahonda

 

Posts: 7239
Joined: 11/16/2005
From: Mobile, Al
Status: offline
quote:

ORIGINAL: HaussCatGrizz

24hrs to double.... for #2


incorrect

_____________________________

Chad Broadus
www.undergroundatv.com
Home of Team Tipsy aka "The Party Crowd"

If you don't stand behind our military, maybe you should try standing in front of them.

(in reply to HaussCatGrizz)
Post #: 5
RE: help guys!! (Math related) - 10/2/2008 8:06:37 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline 		#1
A.=2000-250(y)=x y=years since 1990
B.=1995
C.=0

< Message edited by camogrizz51 -- 10/2/2008 8:09:51 PM >

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to camogrizz51)
Post #: 6
RE: help guys!! (Math related) - 10/2/2008 8:10:53 PM   
beartrack250


Posts: 81
Joined: 12/3/2007
Status: offline 		Idk Bro Im in College and i forgot that stuff . Guess my College allgebra aint that high of a course haha .

_____________________________

O8 Grizzly 660
EDL Vamp with 27-12-12 outlaw combo
Power Tip
K&N Air Filter
DynaTek CDI
2500 Warn

(in reply to camogrizz51)
Post #: 7
RE: help guys!! (Math related) - 10/2/2008 8:13:19 PM   
neverrideahonda

 

Posts: 7239
Joined: 11/16/2005
From: Mobile, Al
Status: offline 		a. population-150.4 people per year (don't know how to write a function)
b. 496 people left in 2000
c. 1997

#2 I think 60 hours, if not 48, I don't have a calculator handy. Trying to do it in my head

_____________________________

Chad Broadus
www.undergroundatv.com
Home of Team Tipsy aka "The Party Crowd"

If you don't stand behind our military, maybe you should try standing in front of them.

(in reply to camogrizz51)
Post #: 8
RE: help guys!! (Math related) - 10/2/2008 8:14:22 PM   
HONDA 4x4


Posts: 554
Joined: 5/7/2006
From: Leonville, LA
Status: offline 		hey guys got number 1...its p=2000(.91)^t  where p=population and t=years since 1990 b. 778 and c. 1998

_____________________________

Honda Fourtrax 300

2'' HL Lift Kit
25'' Swamplites
Red/White Strobes
Intake Snorkel
Exhaust Snorkel
Stereo Box
Backup/Spotlight
quote:

ORIGINAL: C1iffBurton

BRUTE750ii could quite possibly be the most hated man on highlifter


(in reply to beartrack250)
Post #: 9
RE: help guys!! (Math related) - 10/2/2008 8:15:21 PM   
Jimmy Vickers


Posts: 2237
Joined: 10/12/2001
From: Panama City, FL
Status: offline 		I'm not going to do the work for you, lord knows I couldn't get anyone to do it for me.  Break out that math book and start reading.  Sometimes they're hard to follow by yourself, but math books give step by step instructions.  Getting the answers from someone on here is not going to help you learn the math; you can only accomplish that by doing it on your own.  Thankfully, I took dual enrollment math through calculus in high school so I haven't had to take any math in college other than the math involved in chemistry and organic chemistry.  I will tell you that the answer for the second problem is much more than 24 hrs.

*Edit
Wow, when I originally clicked reply there were only two responses.

< Message edited by Jimmy Vickers -- 10/2/2008 8:23:28 PM >

(in reply to camogrizz51)
Post #: 10
RE: help guys!! (Math related) - 10/2/2008 8:17:08 PM   
P360onBugs


Posts: 2643
Joined: 4/5/2005
From: waco, tx
Status: offline
quote:

ORIGINAL: camogrizz51

#1
A.=2000-250(y)=x y=years since 1990
B.=1995
C.=0



do what? he said expontial decay.  so lets assume you mean continous decay. then you will use the decay function. then thre has to be the constant e in there somewhere...

what math is this

< Message edited by P360onBugs -- 10/2/2008 8:18:19 PM >

_____________________________

MUD BIKE=Blue 08' Big Bear 400i
motor mods and mud mods.

TRAIL BIKE= GREEN 08 Brute Force 650i

Of course my winches work--THEY'RE WARNS aint they?

(in reply to camogrizz51)
Post #: 11
RE: help guys!! (Math related) - 10/2/2008 8:21:40 PM   
P360onBugs


Posts: 2643
Joined: 4/5/2005
From: waco, tx
Status: offline 		you are right if you assume expontial decay every year. if its continous decay thats not it.  thats whaty  i asked what math it was.

_____________________________

MUD BIKE=Blue 08' Big Bear 400i
motor mods and mud mods.

TRAIL BIKE= GREEN 08 Brute Force 650i

Of course my winches work--THEY'RE WARNS aint they?

(in reply to P360onBugs)
Post #: 12
RE: help guys!! (Math related) - 10/2/2008 8:21:52 PM   
neverrideahonda

 

Posts: 7239
Joined: 11/16/2005
From: Mobile, Al
Status: offline
quote:

ORIGINAL: HONDA 4x4

hey guys got number 1...its p=2000(.91)^t  where p=population and t=years since 1990 b. 778 and c. 1998


Not sure about the first part, but the 2nd and third are wrong for sure.
b is 496
c is 1997
Pretty sure about that.

_____________________________

Chad Broadus
www.undergroundatv.com
Home of Team Tipsy aka "The Party Crowd"

If you don't stand behind our military, maybe you should try standing in front of them.

(in reply to HONDA 4x4)
Post #: 13
RE: help guys!! (Math related) - 10/2/2008 8:22:32 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline
quote:

ORIGINAL: P360onBugs

quote:

ORIGINAL: camogrizz51

#1
A.=2000-250(y)=x y=years since 1990
B.=1995
C.=0



do what? he said expontial decay.  so lets assume you mean continous decay. then you will use the decay function. then thre has to be the constant e in there somewhere...

what math is this


lol i went dislexic or something, i read the problem again and it was totaly differant from when i read it the first time.  and your right and i used to be good at this but i totally forget it gah my head hurts i give up.

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to P360onBugs)
Post #: 14
RE: help guys!! (Math related) - 10/2/2008 8:25:30 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline
quote:

ORIGINAL: neverrideahonda

a. population-150.4 people per year (don't know how to write a function)
b. 496 people left in 2000
c. 1997

#2 I think 60 hours, if not 48, I don't have a calculator handy. Trying to do it in my head


nevermind......

< Message edited by camogrizz51 -- 10/2/2008 8:28:37 PM >

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to neverrideahonda)
Post #: 15
RE: help guys!! (Math related) - 10/2/2008 8:27:45 PM   
neverrideahonda

 

Posts: 7239
Joined: 11/16/2005
From: Mobile, Al
Status: offline
quote:

ORIGINAL: camogrizz51

quote:

ORIGINAL: neverrideahonda

a. population-150.4 people per year (don't know how to write a function)
b. 496 people left in 2000
c. 1997

#2 I think 60 hours, if not 48, I don't have a calculator handy. Trying to do it in my head


^^ this is right for #1  Whered you get .91 from? that dont work.


What are you talking about? .91?????

_____________________________

Chad Broadus
www.undergroundatv.com
Home of Team Tipsy aka "The Party Crowd"

If you don't stand behind our military, maybe you should try standing in front of them.

(in reply to camogrizz51)
Post #: 16
RE: help guys!! (Math related) - 10/2/2008 8:28:38 PM   
P360onBugs


Posts: 2643
Joined: 4/5/2005
From: waco, tx
Status: offline 		actually the .91 does work.

2000(.91) to the 5=1248

_____________________________

MUD BIKE=Blue 08' Big Bear 400i
motor mods and mud mods.

TRAIL BIKE= GREEN 08 Brute Force 650i

Of course my winches work--THEY'RE WARNS aint they?

(in reply to camogrizz51)
Post #: 17
RE: help guys!! (Math related) - 10/2/2008 8:29:17 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline
quote:

ORIGINAL: P360onBugs

actually the .91 does work.

2000(.91) to the 5=1248


your right i finally figured it out.  Defiantly go with that it works.

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to P360onBugs)
Post #: 18
RE: help guys!! (Math related) - 10/2/2008 8:29:31 PM   
HONDA 4x4


Posts: 554
Joined: 5/7/2006
From: Leonville, LA
Status: offline 		.91 is the rate at which the pop is decreasing, thus .91^5 (5 years since 1990) =6.42 then you multiply that x 2000 (your starting value) and you get roughly 1248 ppl which is the pop in 1995

^this is to check your equation

_____________________________

Honda Fourtrax 300

2'' HL Lift Kit
25'' Swamplites
Red/White Strobes
Intake Snorkel
Exhaust Snorkel
Stereo Box
Backup/Spotlight
quote:

ORIGINAL: C1iffBurton

BRUTE750ii could quite possibly be the most hated man on highlifter


(in reply to camogrizz51)
Post #: 19
RE: help guys!! (Math related) - 10/2/2008 8:30:04 PM   
P360onBugs


Posts: 2643
Joined: 4/5/2005
From: waco, tx
Status: offline 		remember never ride. this is not linear it is expontial decay. you cant say 150.4 per year

_____________________________

MUD BIKE=Blue 08' Big Bear 400i
motor mods and mud mods.

TRAIL BIKE= GREEN 08 Brute Force 650i

Of course my winches work--THEY'RE WARNS aint they?

(in reply to P360onBugs)
Post #: 20
RE: help guys!! (Math related) - 10/2/2008 8:31:17 PM   
P360onBugs


Posts: 2643
Joined: 4/5/2005
From: waco, tx
Status: offline 		thanks for putting my little brain and math degree  to work tonite.  lol


_____________________________

MUD BIKE=Blue 08' Big Bear 400i
motor mods and mud mods.

TRAIL BIKE= GREEN 08 Brute Force 650i

Of course my winches work--THEY'RE WARNS aint they?

(in reply to P360onBugs)
Post #: 21
RE: help guys!! (Math related) - 10/2/2008 8:32:05 PM   
Brown270

 

Posts: 12
Joined: 7/21/2008
From: Hanceville, AL
Status: offline 		try 52.8 hours for # 2 if it is asking for an exact answer. It is 60 hours if it is just wanting 12 hour increments

_____________________________

06 Foreman 500
Warn XT 30

(in reply to camogrizz51)
Post #: 22
RE: help guys!! (Math related) - 10/2/2008 8:32:53 PM   
HONDA 4x4


Posts: 554
Joined: 5/7/2006
From: Leonville, LA
Status: offline 		sorry guys didnt see yall saw that number 1 worked



for number 2 im getting

70.572 hours

200 (doubling 100) = 70.572(1.417)+100



where 100 is the initial value and 1.417 is the percent increase every hour

< Message edited by HONDA 4x4 -- 10/2/2008 8:34:38 PM >

_____________________________

Honda Fourtrax 300

2'' HL Lift Kit
25'' Swamplites
Red/White Strobes
Intake Snorkel
Exhaust Snorkel
Stereo Box
Backup/Spotlight
quote:

ORIGINAL: C1iffBurton

BRUTE750ii could quite possibly be the most hated man on highlifter


(in reply to HONDA 4x4)
Post #: 23
RE: help guys!! (Math related) - 10/2/2008 8:33:08 PM   
neverrideahonda

 

Posts: 7239
Joined: 11/16/2005
From: Mobile, Al
Status: offline
quote:

ORIGINAL: P360onBugs

remember never ride. this is not linear it is expontial decay. you cant say 150.4 per year


OOOOHHHHHH!

_____________________________

Chad Broadus
www.undergroundatv.com
Home of Team Tipsy aka "The Party Crowd"

If you don't stand behind our military, maybe you should try standing in front of them.

(in reply to P360onBugs)
Post #: 24
RE: help guys!! (Math related) - 10/2/2008 8:38:25 PM   
OUTLAWED450S


Posts: 1279
Joined: 1/27/2001
From: kosse, tx usa
Status: offline
quote:

ORIGINAL: HONDA 4x4

okay so i have this bonus quiz due at midnight and i dont know if i have the right answer for the first one and dont know how to do the second one. if someone can work these out and give me the answers i would be very much appreciative.

#1




A town's population is 2000 in 1990.  By 1995, the population had decayed exponentially to 1248 people.
a) Write a function that models the population of the town as a function of the number of years since 1990.
b) What was the population in 2000?
c) When did the population fall below 1000?

#2
A bacteria population grows by 17% every 12 hours.  How long will it take to double?





dont know 1.

but if you have to increas a 100% and in 12 hours it reaches 17%...divide 100% by 17% abd you get 5.882. so you multiply 5.882 times 12 and you get 70.588 hours to double.

_____________________________

ALRIGHT PEOPLE ITS A NEW YEAR.
LETS NOT SCREW IT UP.

(in reply to HONDA 4x4)
Post #: 25
RE: help guys!! (Math related) - 10/2/2008 8:40:15 PM   
OUTLAWED450S


Posts: 1279
Joined: 1/27/2001
From: kosse, tx usa
Status: offline
quote:

ORIGINAL: HONDA 4x4

sorry guys didnt see yall saw that number 1 worked



for number 2 im getting

70.572 hours

200 (doubling 100) = 70.572(1.417)+100



where 100 is the initial value and 1.417 is the percent increase every hour


guess i should have read the rest of all the post

_____________________________

ALRIGHT PEOPLE ITS A NEW YEAR.
LETS NOT SCREW IT UP.

(in reply to HONDA 4x4)
Post #: 26
RE: help guys!! (Math related) - 10/2/2008 8:47:46 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline
quote:

ORIGINAL: OUTLAWED450S

quote:

ORIGINAL: HONDA 4x4

sorry guys didnt see yall saw that number 1 worked



for number 2 im getting

70.572 hours

200 (doubling 100) = 70.572(1.417)+100



where 100 is the initial value and 1.417 is the percent increase every hour


guess i should have read the rest of all the post


This is right, beat me to it.  I did some reminding myself and went and looked up exponential functions again.  Then i figured it out and you had already got it crap. lol O well this was fun brings me back to my old pre-calc days in high school.

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to OUTLAWED450S)
Post #: 27
RE: help guys!! (Math related) - 10/2/2008 8:50:14 PM   
HONDA 4x4


Posts: 554
Joined: 5/7/2006
From: Leonville, LA
Status: offline 		thanks guys and actually this is for my "survey of calc" class in college. glad to know i have some bright minds to bounce ideas off of! now off for beer pong!

_____________________________

Honda Fourtrax 300

2'' HL Lift Kit
25'' Swamplites
Red/White Strobes
Intake Snorkel
Exhaust Snorkel
Stereo Box
Backup/Spotlight
quote:

ORIGINAL: C1iffBurton

BRUTE750ii could quite possibly be the most hated man on highlifter


(in reply to camogrizz51)
Post #: 28
RE: help guys!! (Math related) - 10/2/2008 8:51:43 PM   
camogrizz51


Posts: 3820
Joined: 1/31/2006
From: Louisiana
Status: offline
quote:

ORIGINAL: HONDA 4x4

thanks guys and actually this is for my "survey of calc" class in college. glad to know i have some bright minds to bounce ideas off of! now off for beer pong!

Thats wired cause im in Math200 right now which is college calculus and we dont do anything like this, but i do remeber it a tiny bit from highschool.

_____________________________

2005 HD camo grizzly 686
2.5 warn
29.5" Outlaws on black type 7's
mudbuster cam
HL superduty extreme clutch kit
HL full skid plates
5.5" Gorrila Lift
Gorrila Chrome Moly Driveshaft
Relocated Radiator
HL Springs on all 4 shocks
start lockout mod
shift lockout mod
hmf utility exhaust, k&N pro-flow kit, and dynojet kit
Full Bayou snorkels
warn bumper and trail lights
more to come
http://community.webshots.com/user/pufferdude

(in reply to HONDA 4x4)
Post #: 29
RE: help guys!! (Math related) - 10/2/2008 8:58:47 PM   
matprice


Posts: 1695
Joined: 2/11/2008
From: waveland, mississippi
Status: offline 		yeah remember functions man f(x)=x type stuff example f(x)=(x-5)  x=5  f(5)=(5-5) sooo f(5)= 0 he needs to make a function using this form with an exponential funtion we used this a ton in micro biology then to find the given population all you have to do then is plug in the value to the function you can even chart and graph it....

< Message edited by matprice -- 10/2/2008 9:01:22 PM >

_____________________________

Mat Price
BitMore Performance Race Team

mine BITMORE TUNED
2007 Can Am 800 Outlander

outy_girlprice (hers)BITMORE TUNED
2007 outlander 800 xt

Team BITMORE PERFORMANCE MYSPACE
http://www.myspace.com/bitmore

http://www.myspace.com/matpricemusic
http://www.youtube.com/mprice75

(in reply to camogrizz51)
Post #: 30