Mathematics - 28 December 2007

Tracey has two empty cube-shaped containers with sides of 5 inches and 7 inches. She fills the smaller container completely with water, and then pours all the water from the smaller container into the larger container. How deep, to the nearest tenth of an inch, will the water be in the larger container?

Please tell me how you did it. If possibe, show work.

THANKS! :)

2007-12-28 06:02:07 · 13 answers · asked by Anonymous

I NEED TO SOLVE THIS AND FIND THE CENTER AND RADIUS OF THE CIRCLE. Please show me the steps / answer and you'll get best answer :) PLEASE HELP


(x-4)^2 + (y+3)^2 = 16

2007-12-28 05:58:00 · 3 answers · asked by Jaz 'ma' Taz 2

F : x --> x ?

one-to-one function?
bijection?
surjection?

2007-12-28 05:46:39 · 3 answers · asked by UnknownD 6

Find one ordered pair solution for the equation below, when x=2.

f(x)=2x3+x2-10x-5

Given a zero: x=2, of the polynomial: x3-4x2+21x-34=0, find the others.

2007-12-28 05:46:07 · 5 answers · asked by Anonymous

Solve the rational equation below
1. z^2/8 -7z/8 =1

2. 2n^2/2 - 5n/6

2007-12-28 05:37:42 · 4 answers · asked by Anonymous

I am building a pole barn and I need to be sure that the corners are square can anyone tell me the how this can be accomplished. The measurements are 16' x 20'.

2007-12-28 05:13:35 · 3 answers · asked by Anonymous

thank you! i couldnt find the square root key

2007-12-28 05:00:57 · 4 answers · asked by Christina S 1

2007-12-28 04:56:52 · 1 answers · asked by HIMANSHU A 2

How did you learn to simplify radicals (like simplifying sq.rt.48 to 4 sq.rt.3 or cube root 48 to 2 cube root 6)

I think I discovered a new way to simplify radicals that is simple, easy, works every time, and with slight modification, can work for roots of any power (cube roots, 10th power roots, etc.). I want to see if anyone else has learned how I do it though.

2007-12-28 04:50:11 · 3 answers · asked by hillhavengirl 2

How does the rational roots theorem show that the roots of this function are all irrational?

f(x)= x^3-30x^2+275x-720

I know rational roots theorem is finding out all possible roots by taking all the factors (p) of the constant, and dividing it by all the factors (q) of the highest power. In otherwords, all possible roots = (p/q)

But since q can only be 1 here, how are all the roots "Irrational"?

2007-12-28 04:47:59 · 3 answers · asked by yayaya 3

A wild animal preserve can support no more than 120 elephants. 33 elephants were known to be in the preserve in 1980. Assume that the rate of growth of the population is

dP/dt = 0.0007P(120 - P)

where time is in years. Find a formula for the elephant population in terms of t.

idk if this stuff will help but here are some equations...

dP/dt = kP(M - P)

P = M / 1+Ae^-(Mk)t

Let 1980 = t = 0

plz explain if u can and steps would be awesome.... thank you

2007-12-28 04:44:35 · 3 answers · asked by Alex M 1

Can you show mathematically why it is or isn't possible? By a "smooth, wavy edge", I mean a non-straight, undulating edge with no creases running into it, i.e., the wavy edge is the only crease in the paper.

2007-12-28 04:44:01 · 4 answers · asked by Scythian1950 7

it is given that a,b, and c satisfy the following conditions:
i) abc is not equal to 0
ii) (a+b)/c = (b+c)/a = (a+c)/b = p
prove that the straight line y=px+p passes through the 2nd and 3rd quadrants.

2007-12-28 04:37:53 · 3 answers · asked by Y T 1

the problem is

2cosx+sinx=0

if you could please show me the steps and answers. i need the answer between 0 and 360 degrees

2007-12-28 04:29:23 · 4 answers · asked by Brittany L 1

There are 5 regular Platonic solids in 3D space. How many regular polytopes are there in complex 3D space? A complex 3D space is where 3D coordinates (x,y,z) are of complex numbers x, y, z.

2007-12-28 04:28:53 · 1 answers · asked by Scythian1950 7

I don't understand infinity at all, can you please explain the end behavior of x squared, x to the third.

2007-12-28 04:28:13 · 2 answers · asked by dimitri 3

Okay..Please help...

Matt's rectangular patio measures 9 fett by 12 feet.He wants to increase the patio's dimensions so its area will be twice the area it is now. He plans to increase both the length and the width by the same amount ,x. Find x, to the nearest hundredth of a foot..

How would I go about doing this..Please help..I appreciate the help..

2007-12-28 04:24:42 · 8 answers · asked by Anonymous

Let n ≥ 2 be a positive integer. Initially, there are n fleas on a horizontal line, not all at the same point.

For a positive real number λ, define a move as follows:

Choose any two fleas at points A and B, with A to the left of B;

let the flea at A jump to the point C on the line to the rightof B with BC/AB=λ.

Determine all values of λ such that point M on the line and any initial positions of the n fleas, there is a finite sequence of moves that will take all the fleas to positions to the right of M

2007-12-28 04:20:14 · 2 answers · asked by http://www.b-1st.com 1

On a bookshelf, there are five different mystery books and six different biographies. How many different sets of four books can Emilio choose if two of the books must be mystery books and two of the books must be biographies?

2007-12-28 04:13:46 · 3 answers · asked by anon reigns 3

I need tips for both cause these are the two classes i neva remember jack in.

2007-12-28 04:05:18 · 6 answers · asked by marvin 305 2

2007-12-28 04:02:21 · 3 answers · asked by jaimielynn27 1

What is 2/3rds of 80?

2007-12-28 03:57:00 · 12 answers · asked by Anonymous

If you place a penny on a square of a chess board, and double it on every square (1 penny, 2 pennys, 4 pennies, 8 pennies etc...) by the time you reach the 64th square what would be the ammount of money? Does anyone know this? thanks!

2007-12-28 03:37:12 · 12 answers · asked by Anonymous

I am reviewing my highschool algebra as I take a university math course in Jan. High school was 12 years ago! lol

2007-12-28 03:32:16 · 4 answers · asked by Anonymous

(-4, -2), (-2, 2)

a. 2
b. 2√5
c. 12
d. 12√3

2007-12-28 03:18:42 · 9 answers · asked by . 1

2007-12-28 03:10:34 · 6 answers · asked by Anonymous

Are they like powers - i know its a mathematical term - but I always get them mixed up. Is it like 2 squared - with the little two next to it?

2007-12-28 02:58:46 · 4 answers · asked by Anonymous

Please tell me the difference between concave polyhedra and convex polyhedra.
PS-platonic solids are kinds of convex polyhedra only.

2007-12-28 02:56:44 · 3 answers · asked by Anonymous

Thirty men take 20 days to complete a job working 9 hours a day.How many hour a day should 40 men work to complete the job?

2007-12-28 02:54:42 · 10 answers · asked by Anonymous

a+4/2=a+4/a

2007-12-28 02:51:05 · 7 answers · asked by Lillian M 1