Mathematics - 18 August 2006

A.Reduction of the air temperature due to condensation of the gaseous refrigrant.
B.The transfer of heat from the air to the compressor duw to expansion of the gaseous refrigerant
C. the transfer of heat to the evaporator due to compression of the liquid refrigerant
D. absorption of the heat from the air due to evaporation of the liquid refrigerant.

2006-08-18 16:52:10 · 11 answers · asked by sam 1

2006-08-18 16:48:14 · 6 answers · asked by goddard 1

Truck A, in point A, leaves the station at 8:00. Truck B,in point B, leaves the station at 8:10. Point A and B are 10 km apart. The trucks have same constant speed. Truck A and Truck B stopped at Point B and Point A, respectively, and waited for 30 mins before making their round trip. They met in a certain point at 9:20 while they were going back. What time did B returned to its station?

2006-08-18 16:48:12 · 4 answers · asked by troooy88 2

WHAT IS THE SIMPLEST METHOD TO FIND 'DAY' FOR ANY GIVEN DATE?

2006-08-18 16:27:41 · 4 answers · asked by Anonymous

for a house

2006-08-18 16:26:40 · 6 answers · asked by miejmr 1

Like the birthday problem, or the Monty Hall problem, or any other bizarre problems you have heard of. Please give solid, understandable explanations.

NOTE: You do not have to explain probability...that's less fun. It's all those situations where the answer if couterintuitive that are interesting.

2006-08-18 16:26:17 · 3 answers · asked by iandanielx 3

Is there any simple trick to know whether the given number is prime or not?

2006-08-18 16:22:36 · 19 answers · asked by Anonymous

Eric Weiss purchased 4 tires by mail order. He paid $62.30 plus $6.20 shipping and handling per tire. There was no sales tax on this purchase. When he recieved the tires, Eric has to pay $8.00 per tire for mounting and balancing. At a local tire store, his total cost for the 4 tires with mounting and balancing would have been $425 plus 8% sales tax. How much did Eric save by purchasing the tires through the mail?

2006-08-18 16:19:54 · 11 answers · asked by Selena 1

2006-08-18 16:19:17 · 6 answers · asked by Arun D 2

2006-08-18 16:15:59 · 3 answers · asked by Anonymous

AB and CD are two equal chords of a circle with centre O. M and N are mid points of AB and CD respectivley and angle AMN = 110 degree. P is any point on minor arc CD. What is the measurement of angle APB? I assure u that the angle will not vary but a constant.

2006-08-18 16:15:25 · 12 answers · asked by Anonymous

2006-08-18 15:52:31 · 1 answers · asked by Anonymous

2006-08-18 15:47:45 · 12 answers · asked by Anonymous

When the odometer in Steve's car reads 16,741.3, he fills his gas tank. The next time he fills his tank it takes 10.5 gallons, and his odometer reads 16,935.4. Determine the number of miles per gallon that his car gets.

I'm at a loss on this problem. can someone explain to me how to solve it? Thanks.

2006-08-18 15:44:06 · 7 answers · asked by thotfulcute 2

2006-08-18 15:36:47 · 9 answers · asked by Anonymous

I wish to create an abbreviation string in bibtex format for the following:

@STRING{MfM = "Monatshefte f\"{u}r Mathematik"}

where the \"{u} is the format for a u with an umlaut. The trouble is the symbol " which is treated as the end of the string.

Any ideas on how to avoid this problem?

2006-08-18 15:27:37 · 4 answers · asked by Anonymous

HI,
The problem is:
x/800,000 = (x-1,000,000)/320,000
I can simplify to:
x = 800,000 ((x-1,000,000)/320,000)
x = 2.5 (x - 1,000,000)

Can someone please solve for X? My brain is so fried, I can't figure out what I'm doing.

2006-08-18 15:10:47 · 12 answers · asked by Anonymous

1)x-y=3 2)2x+4y=10
2x-y=-1 3x-2y=-9

2006-08-18 14:47:50 · 9 answers · asked by demetria_nyree 2

2006-08-18 14:00:00 · 4 answers · asked by billyk6 1

Okay. I did about 30 questions already and I'm stuck on this :
3x-3 < 6(x-1) ---- there over 5 and 10
510

and i solved and got:
3x-3 < 6x-6 (there over the 5 & 10)
5 10

what next?

2006-08-18 13:49:51 · 11 answers · asked by Anonymous

2006-08-18 13:46:30 · 6 answers · asked by Anonymous

IF X =Y
C=10
B=15
ADD C+Y
WHAT IS THE ANSWER?

2006-08-18 13:43:40 · 16 answers · asked by Anonymous

Last night I came across a pattern in finding prime numbers. In school today, during Biology, I wrote a general rule for it:
y = 2x^2+2x-1 where y is the prime number. Is this equation correct and will it work for any number plugged in for x in the equation?

2006-08-18 13:28:25 · 10 answers · asked by Anonymous

I purchase some items from the UK last month & to my understanding the exchange rate changes daily... how can i find the rate for 7/12/06 and convert it into us dollars>> please help Im so frustrated..

mt reciept said 329.55 in EUROs & what hit my bank was $604.71.. please help...

2006-08-18 13:11:32 · 3 answers · asked by Melani A 3

need it by monday aug 21. plz help.

2006-08-18 13:07:44 · 11 answers · asked by -WANTED- 3

Find all 2-digit integers x for which sqrt(x+x^2) is an integer.

2006-08-18 12:28:34 · 5 answers · asked by Anonymous

I don't understand the question...I got 112 is this right?

2006-08-18 11:56:51 · 9 answers · asked by Jake 1

2006-08-18 11:52:52 · 9 answers · asked by haresgroove 2

x is a 2-digit integer such that when you take the square root of the sum of x and its square, you get a number that's in the form a* sqrt(a+1). Find the least possible value of x

2006-08-18 11:47:05 · 4 answers · asked by Anonymous

5x - 4y = -5
x - 2y = -7

2006-08-18 11:27:30 · 9 answers · asked by wicked 1