Mathematics - 21 July 2007

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

square root of a^2 +b^2

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

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

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

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

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

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

show work please!!!

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

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

so if your using the weigh machine...and the machine reads in grams and you want liters........what is the conversion??

2007-07-21 04:37:40 · 8 answers · asked by Anonymous

Question 1:
In acute triangle ABC, segment AD is an altitude, the measure of angle ADB = 4x2 + 26, BD = 9x - 3, and DC = 6x +8. Find BC. Show all work to recieve credit.

Question 2:
Triangle PQR is a 30-60-90 triangle with right angle Q and segment PQ as the longer leg. Find the possible coordinates of R if P(2,6) and Q(2,-6). Show all work to receive credit.

Please help me do these. They are the last two questions I have to answer. Only serious answers please. THANKYOU!

2007-07-21 04:23:10 · 1 answers · asked by Anonymous

Example:

5.000.000 or 5,000,000?

Is both of them is right? Or not? Probably each have different purpose for the different case?

10 pts for good or detailed answer.

2007-07-21 04:03:56 · 4 answers · asked by Doo.ri 3

Linear equation y=ax+b, would b have a vertex if b=3?

2007-07-21 03:31:18 · 2 answers · asked by littlesoutherner12 1

How is it that, in this one area of our lives, we have convinced ourselves that our beliefs about the world can float entirely free of reason and evidence? Please no quotes from the bible or sermons required. Refrain from attacking me for asking this question.

2007-07-21 03:28:02 · 12 answers · asked by mvfwed 1

2007-07-21 03:23:40 · 4 answers · asked by natalie 1

2007-07-21 03:19:36 · 6 answers · asked by Anonymous

where s is the intergal

2007-07-21 03:04:31 · 3 answers · asked by Anonymous

find the are of a rectangle if:: L = 5 2/3, w= 4 3/4

2007-07-21 03:03:30 · 5 answers · asked by Anonymous

2007-07-21 02:58:04 · 5 answers · asked by daneris f 1

I am trying to figure out the steps to get -5/3 but I keep coming up with 15. Does anyone know a different way.

2007-07-21 02:23:50 · 3 answers · asked by piggy38040 1

1. 3(x+3) > 2(x-1)

2. x+(2/3) < 5

3. (x-6)/5 > 5

4. (2x+3)/7 < 2

5. 3 < 2x +1 < 11


it's kindA HARD because of the <> signs,, by the way,, thanks,, :-)

2007-07-21 02:20:38 · 6 answers · asked by AriANe 1

Hi.
How do I multiply these:
x(1- sqrt x) * x(1+ sqrt x).
Can you please show me step by step and explain each step?

2007-07-21 02:18:55 · 4 answers · asked by F 6

½ | 2x+1 |=3x

Im confused because there is a variable on both sides and I'm not sure how to move it with the absolute value

2007-07-21 01:31:32 · 7 answers · asked by Anonymous

ex: 7+9i = (8+i)(1+i)

2007-07-21 01:30:12 · 7 answers · asked by Motafael y 1

2007-07-21 01:15:09 · 3 answers · asked by yuleydis77 1

If you did the correct thing you will see that those 2 diagonal lines bisect each other at 90 degrees.

2007-07-21 01:14:40 · 8 answers · asked by tears 1

Find an implicit and an explicit solution to the initial value problem
dy/dx = (y^(2) - 1) / (x^(2) - 1), y(2) = 2.

Please show all workings - thanks.

2007-07-21 01:01:22 · 1 answers · asked by Ben R 1

Consider the differential equation :
(1+y^3)y' = x^2
Determine a region of the xy-plane for which the differential equation would have a unique solution whose graph passes through a point (x0, y0) in the region (where 0 is subscript).

Please show all workings.
Thanks.

2007-07-21 00:52:57 · 3 answers · asked by Anonymous

Hi.
Can someone please help me rationalize this denominator:
1/ x(1-sqrt x) ; 1 divided by x times ( 1 minus the square root of x).
Can you please show me step by step so I can learn the method.
Thank you!

2007-07-21 00:48:55 · 3 answers · asked by F 6

2007-07-21 00:14:23 · 11 answers · asked by ccaranay 1

2007-07-21 00:13:04 · 9 answers · asked by ccaranay 1

2007-07-21 00:11:58 · 10 answers · asked by ccaranay 1