Science & Mathematics - 21 July 2007

2007-07-21 06:32:11 · 3 answers · asked by littlesoutherner12 1 in Mathematics

A tennis club offers two payment options:
Option 1: $42 monthly fee plus $5/hour for court rental
Option 2: No monthly fee but $8.50/hour for court rental.
Let x = hours per month of court rental time.
a) Write a mathematical model representing the total monthly cost, C, in terms of x for the following:
Option 1: C=_________________
Option 2: C=_________________
b) How many hours would you have to rent the court so the monthly cost of option 1 is less than option 2? Set up an inequality and show your work algebraically using the information in part a.
Answer:
Show your work here:

2007-07-21 06:31:21 · 2 answers · asked by peanut1 1 in Mathematics

Suppose that the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 50.
a) Set up an equation for the perimeter involving only L, the length of the rectangle.
Answer:
b) Solve this equation algebraically to find the length of the rectangle. Find the width as well.
Answer: Length ______, Width ______

2007-07-21 06:30:04 · 6 answers · asked by peanut1 1 in Mathematics

square root of a^2 +b^2

2007-07-21 06:20:11 · 3 answers · asked by confused ~ 1 in Mathematics

2007-07-21 05:55:54 · 5 answers · asked by Anonymous in Mathematics

Piece of work?

A can complete a piece of work in 15 days , working 8 hours a day . The work is started by A on the first day . On the second day ,one man ,whose capacity is twice that of A , is added.On the third day ,another man ,whose capacity is thrice that of A, is added and so on. In how many days will the work be completed , if everyone works for exactly one hour a day ?



what it means when we say "......On the second day ,one man ,whose capacity is twice that of A ...." in this context ?


what it means when we say ".....On the third day ,another man ,whose capacity is thrice that of A....."


please clear this doubt ......this is not understandable

2007-07-21 05:53:18 · 1 answers · asked by calculus 1 in Mathematics

as far as I know nutrasweet is used as sweetener by diabetic people.

2007-07-21 05:40:43 · 4 answers · asked by dodong1127 2 in Chemistry

The half-reaction occuring at the anode in the balanced reaction shown above is what?

I can't figure this out can someone please help me thanks!

2007-07-21 05:35:54 · 2 answers · asked by Stephanie S 1 in Chemistry

and also,we know tht the poles of the earth were changed in the history of earth but in wht way tht would happen???

thnx a bajillion!

2007-07-21 05:29:00 · 2 answers · asked by RaZoR 2 in Physics

will the people in the pool get electrified..?

2007-07-21 05:27:53 · 14 answers · asked by Anonymous in Weather

2007-07-21 05:27:52 · 3 answers · asked by Anonymous in Chemistry

2007-07-21 05:27:25 · 3 answers · asked by pablo_mcr 1 in Physics

2007-07-21 05:26:18 · 4 answers · asked by Anonymous in Medicine

Don't answer this cruelly

2007-07-21 05:26:01 · 17 answers · asked by pudderboy2002 1 in Astronomy & Space

I've heard about this from a number of sources but no one has provided any sort of explanation. In the 1960's there were scares of an impending ice age. I'm just wondering if anyone knows why.

2007-07-21 05:25:14 · 3 answers · asked by Gwenilynd 4 in Weather

Where can you buy/find them?

2007-07-21 05:16:47 · 6 answers · asked by asdfhfdgx 1 in Chemistry

If I understand it correctly, the "north" pole and the "south" pole are like the ends of magnets, creating the magnetic field. Yet, isnt the core of the earth molten?

2007-07-21 05:14:09 · 4 answers · asked by leikevy 5 in Physics

2007-07-21 05:13:50 · 5 answers · asked by Amidhala S 2 in Astronomy & Space

2007-07-21 05:09:47 · 3 answers · asked by Anonymous in Other - Science

When you mix mentos with coke, why does it like "explode?"

2007-07-21 05:07:36 · 4 answers · asked by X_nOmAd_oo57-ha 3 in Chemistry

heat is produced while we burn waste paper,quantity that is produced is required.

2007-07-21 05:00:54 · 2 answers · asked by PIJUSH M 1 in Chemistry

2007-07-21 05:00:04 · 2 answers · asked by summerrain 2 in Chemistry

for Starting i wil give some energy and that energy will then be converted into mechanical energy . That inturn i will convert into electrical energy. With this electrical energy i will change into More electrical energy by transformers. Now i got more electrical energy. Now i will seperate into 2 electrical energy. AC and DC. i wil use this AC for one electrical equipment. And i wil use this DC for looping back into one DC to AC convertor. Now i got AC. I will Boost this AC with Transformers again. I will return it into the System as loop input return.
When i do this , then why my system wont generate more and more electricity? All people are saying energy can neither be create nor destroyed, I accept that rule. But why this above lines wont work?

2007-07-21 04:58:37 · 10 answers · asked by ASH 2 in Engineering

4p^2 + 4pq - 3q^2

2007-07-21 04:54:11 · 4 answers · asked by Anonymous in Mathematics

I've seen a couple around here, just wondering if they're harmful in any way.

2007-07-21 04:50:27 · 2 answers · asked by Anonymous in Zoology

How to factor 2t^2 - 9t - 7

show work please!!!

2007-07-21 04:47:45 · 7 answers · asked by Anonymous in Mathematics

2007-07-21 04:47:11 · 9 answers · asked by 1saintofGod 6 in Geography

I would like to know where I can find the following information on white kidney bean plants:
a) where they orginate from
b) what their uses arre
c) Any any ANY adition info...

2007-07-21 04:44:16 · 1 answers · asked by Anonymous in Botany

Why are current dish satellite receivers smaller in diameter? What are the parts of a satellite dish?

2007-07-21 04:43:30 · 4 answers · asked by edgarec17 1 in Astronomy & Space

2007-07-21 04:42:59 · 4 answers · asked by DON 1 in Mathematics