Mathematics - 2 December 2007

An open box is to be made from a 3-foot by 5-foot rectangular piece of material by cutting euqal squares from each corner and turning up the sides. Find the volume of the largest box that can be made in this manner.

(a). 5.2ft³ (b). 4.1ft³ (c). 7.5ft³ (d). 3.3ft³

PS: can any1 show me how to do this problem step-by-step...thanks

2007-12-02 17:06:21 · 5 answers · asked by David N 1

I need some help with my calculus homework. I'm trying to convert the power series x^(n+2) / 2^(n+1)(n+1) to its functional notation.

2007-12-02 17:05:15 · 2 answers · asked by aberrantgeek 3

2007-12-02 17:04:23 · 2 answers · asked by meki_2001 1

2007-12-02 17:03:41 · 9 answers · asked by glamour girl 1

rhetoric and logic tells me that dividing by 0 is like not dividing at all.
so x/0 = x.

I know they'd have to re write ALOT of math books (all of them, perhaps)

but I wonder where that would lead, we do have euclidian geometry.

maybe this could be Alexisian Division...
I called it first, yeah!!

2007-12-02 16:54:37 · 5 answers · asked by Anonymous

The sum of three numbers is 98. the ratio of the first to the second is 2/3, and the ratio of the second to the 3rd is 5/8. What is the second number?

2007-12-02 16:51:30 · 1 answers · asked by Anonymous

Find the sum if Convergent:

∑ where n =1 to infinity (3/(n(n+3)) + 5/4^n)

The first it's 3 (I think) but I can't get the second geometric series right. What I do is:

5∑(1/4)^n, and then 5∑(1/4)(1/4)^n-1, so a = 5/4, r = 1/4, it's sum would be: s = a/1-r, but I get 5/3, when I add up that to the 1 from the other series I get 8/3.

The answer is:7/2 :( What am I doing wrong? Thanks!

2007-12-02 16:45:54 · 1 answers · asked by Jorm 3

2007-12-02 16:43:52 · 5 answers · asked by kleague9921 1

but usually what tests do we use, does the comparison test works most of the time, what about the 2nd test..im realli confused b/t what tests...could u plz help me out? thanks!

2007-12-02 16:39:06 · 2 answers · asked by ruby 2

While flipping through some calculus textbooks, I noticed that there are fancy long "S" symbols (or is it f?) I have never seen these symbols before!
What are they called and what do they mean? They're placed on the left side of numbers. It looks like a long swirly s.

2007-12-02 16:21:32 · 1 answers · asked by Anonymous

what value of x must be excluded in the algebraic fraction?

x/6-x/8=1

2007-12-02 16:17:10 · 2 answers · asked by God Bless America!~ 4

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Algebra%20II/Picture1.png

2007-12-02 16:16:37 · 1 answers · asked by Alex M 1

2007-12-02 16:08:55 · 1 answers · asked by Anonymous

name of the most advance mathematics

2007-12-02 16:06:53 · 4 answers · asked by delphian 2

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Algebra%20II/502a/Picture3.png

2007-12-02 16:06:46 · 4 answers · asked by Anonymous

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Algebra%20II/502a/Picture2.png

2007-12-02 16:05:27 · 7 answers · asked by Anonymous

The person who spells it out for me as simply as they can will get the Best Answer vote.

2007-12-02 15:59:35 · 9 answers · asked by Anonymous

2007-12-02 15:53:34 · 5 answers · asked by Bob Lawbla 3

2007-12-02 15:52:35 · 1 answers · asked by Tonie M 1

The temperature of an ideal gas varies directly with its pressure and inversely with the number of molecules in the vessel. If the pressure is increased by 5% and the number of molecules is decreased by 10% what is the percentage change in the temperature? State whether it increases of decreases and five the percentage change to the nearest .1 percentage.

2007-12-02 15:43:01 · 1 answers · asked by math20 1

thnaks

2007-12-02 15:42:44 · 2 answers · asked by vote4pedro41 1

A monkey sat in front of a special typewriter that only contained keys for the letters A, L, G, O, R, I, T, H, M, S. The monkey sat at the typewriter for a long time and pressed the keys. At the end of this time, the pattern typed on the page was quite remarkable. In fact, the monkey had typed out a large number of 10 letter words, all different mis-spellings of the word ALGORITHMS, one after another. Moreover, each mis-spelling had all of all the letters A, L, G, O, R, I, T, H, M, S and every letter was in the wrong position. If the monkey had typed every mis-spelling of this type exactly once, and had typed nothing other than these mis-spellings, how many times was the letter A typed in total?

2007-12-02 15:28:07 · 4 answers · asked by Mugen is Strong 7

tan((sin^-1)x)

2007-12-02 15:27:21 · 1 answers · asked by Jay j 1

1. A designer, attempting to arrange the characters of his artwork in the form of a square grid with equal number of rows and columns, found that 24 characters were left out. When he tried to add one more row and column, he found that he was short of 25 characters. Can you find the number of characters used by the designer?

2. Some students planned for a get-together. The budget for food was $500. Five of the students failed to come because of the distance and therefore the cost of food for each member increased by $5. How many students attended the get-together?

3. Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.

2007-12-02 15:26:02 · 1 answers · asked by Anonymous

1) Find the rate of change of the distance between the origin and a moving pint on th egraph of y = sinx if dx/dt = 2 cm/second

2) All edges of a cube are expanding at a rate of 3 centimeters per second. How fast is the volume changing when each edge is (a) 1 centimeter and (b) 10 centimeters.

3) All edges of a cube are expanding at a rate of 3 centimeters per second. How fast is the surface area changing when each edge is (a) 1 centimeter and (b) 10 centimeters

4) The formula for the volume of a cone is V = 1/3 pir^2h. Find the rate of change of the volume if dr/dt is 2 in per minute and h=3r when (a) r= 6 inches and (b) r =24 inches

2007-12-02 15:22:01 · 2 answers · asked by Anonymous

4 √72 + 3 √18 - 5 √6



3x^2 y^2
-------------
6xy^2

please show the steps.

2007-12-02 15:15:56 · 4 answers · asked by Anonymous

Assume all variables represent postive numbers

2007-12-02 15:14:48 · 4 answers · asked by Tonie M 1

Can some one explain me how to prove that S5 is abelian

Let a = 1 2 3 4 5
4 5 3 2 1

and

b = 1 2 3 4 5
3 4 1 5 2

2007-12-02 15:06:22 · 2 answers · asked by Anonymous

An arithmetic series of 10 terms has a sum of 1100. The second term is twice the first term. What is the third

2007-12-02 14:58:15 · 3 answers · asked by Quagmire77 1

2007-12-02 14:54:41 · 2 answers · asked by danny l 1