Mathematics - 28 December 2007

Carson has 140 m. of fencing to enclose a field. He wants to use sides that are only whole meter lenghts. What dimensions should he use to enclose the greatest possible area?

and

The sum of three consecutive integers is 378. What are the intergers?


yeahh, I'm doing my winter break homework, and I just don't remember how to do these, so can guys also explain how you got the answer? THANKS SO MUCH

2007-12-28 15:19:35 · 7 answers · asked by ahhitsjenny 2

can these limits be determined without usint L'Hopital's rule? Is there a way to compute them algebraically?

lim as x goes to 1 of (x-1)/(x-x^1/4)

lim as x goes to pi/2 of (5cosx)/(4x-2pi)

lim as x goes to 0 of (1+abs(x))^(1/x)

lim as x goes to 0 of x/(1-2^abs(x))

2007-12-28 15:03:59 · 2 answers · asked by Loopey Shyathorekchee 1

It's a really easy problem; I just don't know how to do it:

The cost to a furniture manufacturer for making a sofa is $320. The manufacturer then sells the sofa for $496. What is the markup rate?

Please tell me how to solve the problem. (I have a ton of other ones just like it)

Thank you very much!!! :)

2007-12-28 15:03:53 · 6 answers · asked by Anonymous

Is it possible to deduce the type of change - linear or otherwise - undergone by the radius describing a spiral..and what is it that is forcing the tip of 'r' to describe a 'circular..?(it's not coming back on itself,so is it circular at all..?) path - in other words, I suppose, what is the formula for that motion?

2007-12-28 14:58:11 · 5 answers · asked by c0cky 5

So I just tried to find the correct answer for one of my exam questions, and I got the same answer! Maybe my teacher corrected it wrong?

Tell me what you guys get:
2/3(4-x)≥1/2

I got 3 1/4 several times already!

2007-12-28 14:07:11 · 6 answers · asked by :o) Sunshine 3

I want to get some artificial lawn but can't work out how measurement are made. I think one company sells by the linear meter and another by cubic meter. How do I work out the amount i need? I am shocking at Maths!!!!

2007-12-28 13:04:14 · 9 answers · asked by myself 3

4^ - 1 / 2

a. -16
b. 1 / 16
c. 1 / 2
d. -2

2007-12-28 12:58:47 · 3 answers · asked by . 1

thanks everyone for answering my last question
but I still don't get some problems, can you PLEASE help me and explain to me how you got that answer?

1.) 48 - 4m ; would that equal -12m?
2.) 1/3m - 2/3n - 5/3 ; those / signs mean over (like a fraction) I don't understand that, can someone give me the answer and explain?
3.) 9h - 63j ; would that equal -7hj?
thanks a lot for your help guys :D

2007-12-28 12:44:09 · 3 answers · asked by ahhitsjenny 2

ok well my grade in one of my classes is an 87%, i just finished my finnal and i got a 95 on it. the finnal is worth 30% of my finnal grade so what do i have?

2007-12-28 12:30:50 · 3 answers · asked by Jay7 2

1a) Put this equation in mx+b form: 3y=x-15

1b)write the equation of a line this is parallel to the given line.

2007-12-28 12:24:03 · 7 answers · asked by Anonymous

find y' (prime) if x=tan(x+y)

2007-12-28 12:07:43 · 4 answers · asked by Venia c 1

what is the derivative of this equation s(t)=sec√t

2007-12-28 12:04:12 · 2 answers · asked by Venia c 1

When the equation H2S + O2 --> H2O + SO2 is completely balanced using smallest whole numbers, the sum of all the coefficients is?
A)11
B)7
C)5
D)9

2007-12-28 11:56:23 · 1 answers · asked by Anonymous

A Young math teacher needed to make a little exrta money to support his family. To do this, he sold items during seasonla months. He buys a lot and starts the business with an ample amount of money in his pocket.

In Oct, the math teacher doubled hs money selling pumpkins. But, he had to spend $3000 setting up his stand and paying taxes

In Nov, he tripled his money selling turkeys. But, he had to spend 5400 on taxes.

In Dec, he quadrupeled his money by selling trees. But, he had to spend 7200 on taxes.

When the teacher came home he had $4800 in his pocket from the 3 months business. Was his wife happy or sad depending upon weather or not he made a profit?

1) How much money did he start out with?
2) How much did he gain or lose during the three holiday season?
3) Was his lovely wife happy or sad when he returned home with $4800 in his pocket at the end of Dec?

please please explain your answer. i REALLY need helpwith this!!

2007-12-28 11:51:06 · 2 answers · asked by taylor_travers098 2

2007-12-28 11:36:24 · 3 answers · asked by Lisa K 1

2007-12-28 10:57:52 · 10 answers · asked by Aaron J 1

Is there a formula that I could simply plug the numbers into that would give me the amount of the payment for $137,500 with a 5.25% interest rate for 30 years?

2007-12-28 10:51:25 · 5 answers · asked by Anonymous

The expression -5.5(a/1000) can be used to calculate the change in temperature in degrees Fahrenheit for an increase in altitude a, measuring in feet. A plane starts on the ground and then rises 23,000 ft. Find the change in temperature at the altitide of the plane.
Which choice is rite?
a.126.5 degrees
b. -126.5 degrees
c. -125 degrees
d. 125 degrees

2007-12-28 10:46:10 · 6 answers · asked by Anonymous

4x3(2x2-x+7)?? i have to multiply it and i have no idea how

2007-12-28 10:42:55 · 9 answers · asked by carly.furtado 1

if I FACTOR that
what would it be? sorry for asking
I'm just confused right now ahah

2007-12-28 10:31:12 · 8 answers · asked by ahhitsjenny 2

If I had 1 trillion dollars and I wanted to give every person in africa and even amount. how much would each individual get?

2007-12-28 10:25:48 · 6 answers · asked by Anonymous

2007-12-28 10:22:23 · 6 answers · asked by Alexander 6

A:x feet=7 meters
B:36 inches=y centimeters
C:x inches=40 centimeters
D:x inches= 15 centimeters
E:0.8 inches= y centimeters

[[Thank-you]]

2007-12-28 10:20:30 · 7 answers · asked by megs<3 1

1/2 + (2/3 / 3/4) - (4/5 x 5/6) = I need to know how to get the answer, the answer is 13/18

2007-12-28 10:17:11 · 6 answers · asked by Melanie C 1

Find the exact value without a calculator

sin^ -1[cos( π/4)]

cos[2 sin^ -1 (1/2)]

2007-12-28 10:13:49 · 5 answers · asked by chococat0116 2

Could someone please give me an example, preferably using this equation.... If the amount needed is $137500, there are $12,500 in fees for a total loan amount of $150,000 what would the APR be if the interest rate is 5.25% on a 30 year fixed loan?

2007-12-28 10:11:29 · 3 answers · asked by Anonymous

Here is a word problem...

The population of Brownsville has grown according to the mathematical model y=720,500(1.022)^x....Where x is the number of years


If this trend continues ,,,using the model, in how many years the population of Brownsville reach 1,548,8000...

Please help ,,Thanks.

2007-12-28 09:38:03 · 6 answers · asked by Anonymous

sec^2 x + tan^2 x=3
in the intercal [0,2pi)

2007-12-28 09:31:12 · 7 answers · asked by em.four 2

sin^2(355pi/113)+cos^2(355pi/113)

I can't figure out where to go from here, the answer needs to be very precise... and I can't figure out how to evaluate it.

2007-12-28 09:27:12 · 9 answers · asked by em.four 2

secx-cosx=sinxtanx

I know basically what to do, but I can't ever get secx-cosx to become equal to sinxtanx, or the other way around. Help??

2007-12-28 09:24:09 · 6 answers · asked by em.four 2