Science & Mathematics - 8 January 2007

The manager of a 240-room ski resort has found that, on average, 150 rooms are booked when the price is $175 per night and 160 rooms are booked when the price is $160 per night. What price should the manager set for the rooms to maximize revenue?

2007-01-08 16:14:22 · 4 answers · asked by Anonymous in Mathematics

2007-01-08 16:12:55 · 6 answers · asked by rae. 2 in Astronomy & Space

a) A rectangular boz is to be made fomr a piece of cardboard 6cm wide and 14 cm long. It will be formed by cutting out squares from each of the four corners, and then turning up the sides. If the volume of hte box is to be 40 cubic cm, what should be the dimensions of the squares that are cut out?

b) For the same box, what if we don't have a particular vloume in mind but we wnat the volume of the box to be as large as possible, then what size squares do we cut out?

2007-01-08 16:11:55 · 4 answers · asked by clock 2 in Mathematics

I have looked at Putrescine, Cadaverine, and Spermidine but I think those are toxic. Any ideas?

2007-01-08 16:11:17 · 6 answers · asked by emailfordon 1 in Chemistry

Please help I am very interested in when the first dino bones were found with evidence of death by spears. I learned it when I was little but cannot find anything on it. If dino's were killed with spears then humans existed and how did we come about when the dinos ruled the earth? Thank you

2007-01-08 16:09:32 · 6 answers · asked by Anonymous in Earth Sciences & Geology

What i mean is can death be avoided.

2007-01-08 16:06:49 · 14 answers · asked by fcashyam 3 in Medicine

if stars are so far away, how do we know that these distant stars are moving at all?

2007-01-08 16:06:04 · 7 answers · asked by RJ 2 in Astronomy & Space

:I live in PA and someone told me it is a commonwealth not a state but there are 50 states and PA is one of them. What I want to know is what is the difference between a commonwealth and a state, how many commonwealths are there, and please name them all if you know. Thank you

2007-01-08 16:04:17 · 1 answers · asked by Anonymous in Geography

Find exactly: sin 30˚ cos 45˚

2007-01-08 16:01:56 · 4 answers · asked by thomasgraham880 1 in Mathematics

An object is traveling at 15 meters per minute. (1 kilometer=1000 meters) (1 meter= 100 centimeters)

a) convert this rate to kilometers per hourr

b) convert this rate to centimeters per second

c) how many days will it take for the object to travel 5,000,000 kilometers. (round to the nearest day)

ugh hate mathh. help please, an explanation of how you got it would be great too, thanks

2007-01-08 16:00:09 · 5 answers · asked by molly m 1 in Mathematics

the names of rockets sent to space in 1950 n' 1960, plz help 2 unscramble them:

1) KNSUPT
2) OOVSKT
3) DVAAGURN
4) YZUSO

Plz help!!
need it for the project

2007-01-08 15:58:39 · 5 answers · asked by suruchi 2 in Astronomy & Space

thelma's average driving speed is 4 miles per hour faster than richard's. in the same length of time it takes Thelma to drive 364 miles, richard only drives 336 miles. what is thelma's average driving speed?

pls explain step by step. thanks!

2007-01-08 15:58:10 · 8 answers · asked by Orange? 4 in Mathematics

And how many seconds of an angle in the periphery of the sky does a close star appear when the earth is on one side of the sun from the other side of the sun

2007-01-08 15:57:55 · 3 answers · asked by David L 4 in Astronomy & Space

2007-01-08 15:56:59 · 9 answers · asked by phijan88 2 in Zoology

Its a word problem, and it says:

A triangle has two sides equal in length and a third side 5in. longer than half the length of each of the other two sides. If the perimeter of the triangle is 50in, How long is each side?

I just cant figure it out, the instructions say to "Write an equation, and solve"
i dont just want the answer, i just want to know how to do it...

thank you!
-much love- Ashley

2007-01-08 15:54:22 · 4 answers · asked by Truth be told. 2 in Mathematics

2007-01-08 15:52:44 · 5 answers · asked by Edmund V 1 in Physics

2007-01-08 15:48:50 · 3 answers · asked by sunkisschik 1 in Chemistry

There are seven basketball teams in Central Hoosier League. Ever year each team plays all the other teams in the league once. How many league games must be sceduled each year?

(Please answer in nth term or / probability (hint: ratio))

2007-01-08 15:47:36 · 4 answers · asked by Johnn 2 in Mathematics

2007-01-08 15:47:09 · 7 answers · asked by cutie_rose 2 in Geography

i have a problem i don't get....
can you tell me what's the answer or tell me how to solve the problem???
As a hurricane increase in intensity, the air pressure within it's eye decreases. In a category 5 harricane, which is the most intense, the air pressure is about 27.16 inches of mercury. In a category 1 hurricane, which is least intense, the air pressure is about 1.066 times that of a Category 5 hurricane. What is the air pressure within the eye of a category 1 hurricane? Round your answer to the nearest hundredth.
PLEASE HELP!!!
xDDDDDDDDDDDDD

2007-01-08 15:45:53 · 5 answers · asked by (: 2 in Weather

-Method Direct of the type 0 = a(x - h)^2 + k

-Factorization of the type 0 = (nx + d)(mx + e)

And this quadratic formula x = - b + or - Square Root V(b^2 - 4ac)
_____________________________
2a
They mentioned something about, Verifying, Exact Roots, Approximation of the roots, " au centieme pres" close to a hundred, form of entiers or decimal numbers and "dixieme pres" close to 10.

What am I do to if I encounter any problems similar to these, please guide me...

2007-01-08 15:42:51 · 1 answers · asked by Cloud 1 in Mathematics

2007-01-08 15:41:17 · 1 answers · asked by stumped on physics 2 in Physics

There is a circle graph. There are fractions. 2/5 is true/false. 1/6 is fill in the blank, 1/10 is essay, and 1/3 is multiple choice. I hop this isn't confusing!!!!!!!! the first question is......

1)Use a set model to find how many students prefer multiple choice questions?

2) What fraction of the srudents prefer either fill-in-the-blank questions or essay questions?

3) What fraction of students don't prefer the true/false questions?

2007-01-08 15:41:12 · 9 answers · asked by Kayla 1 in Mathematics

have 5M NAOH
10% Sds
Want to make .2M NaOH
1%SDS
And 5ml of it.
How to do this?

2007-01-08 15:40:47 · 1 answers · asked by Vee 5 in Chemistry

Solve 0
sinø= 1 + cosø

2007-01-08 15:39:44 · 4 answers · asked by Tiffany 3 in Mathematics

If E represents the elevation in meters above sea level and T represents the boiling point of water in degrees Celcius at that elevation, then E and T are related by the equation below.

E = 1000(100-T) + 580(100-T)^2

a. Solve the equation above for T. (Hint: Begin by substituting x for 100-T. Then solve for x.)
b. What is the approximate boiling point of water at an elevation of 1600 meters?

Explanations are very appreciated. Please try and help me with the problem. Thanks!

2007-01-08 15:37:31 · 8 answers · asked by smileyface(= 1 in Mathematics

Petroleum is separated to bitumen, gasoline, tar, etc in a distillation column by heating it up to the products' boiling point respectively. As petroleum is in a liquid phase, does it change to gas phase once it is heated? Are the products in gas phase and later condensed to liquid phase?

2007-01-08 15:37:26 · 3 answers · asked by sarra_hilfiger 2 in Chemistry

2007-01-08 15:36:30 · 13 answers · asked by rrlm21@sbcglobal.net 1 in Medicine

2007-01-08 15:36:28 · 1 answers · asked by Anonymous in Biology

2007-01-08 15:35:46 · 4 answers · asked by P 1 in Mathematics