Mathematics - 23 November 2007

Given the supply and demand functions D(x) = 15-1/3x and S(x) = 2x^1/3, find the equilibrium point.

I set the two equal to each other and cannot seem to get the correct answer no matter how I solve it!

2007-11-23 09:33:49 · 2 answers · asked by Anonymous

You guys did a good job on the last one, so here's a new one:

The length of a rectangle is increasing at a rate of 8 cm/s and its width is increasing at a rate of 3cm/s. When the length is 20 cm and the width is 10 cm, how fast is the area of the rectangle increasing.

2007-11-23 09:27:11 · 3 answers · asked by glass_commander 2

2007-11-23 09:20:36 · 7 answers · asked by jared r 1

x square + 8x +16 /5x+20/ x square - 16 / 5

2007-11-23 09:17:11 · 2 answers · asked by Anonymous

Evaluate

squareroot of -100

if possible. If it is not possible, please explain why

2007-11-23 09:15:17 · 18 answers · asked by meme 1

factor completely if the polynomial cannot be factored write "prime''

2007-11-23 09:15:16 · 7 answers · asked by Anonymous

Simplify. Express your answer in simplified radical form

2(squareroot of 12) + 4(squareroot of 27)

2007-11-23 09:13:13 · 3 answers · asked by meme 1

I am not sure how to do this, if someone could help me with the steps it would mean a lot. Thanks


Solve by completing the square. Express your answer in simplified radical form.


4x^2+2x-3=0

2007-11-23 09:09:46 · 3 answers · asked by meme 1

factor completely
if polnomial cannot be
factored write "prime"

2007-11-23 08:54:03 · 6 answers · asked by Anonymous

2007-11-23 08:53:11 · 0 answers · asked by nevada 1

2007-11-23 08:49:08 · 4 answers · asked by Nicole D 1

(x^2/x-3)-(9/x-3)

2007-11-23 08:42:06 · 2 answers · asked by shawntae6513 1

A line passing through (9, 15) and (2, y) is parallel to a line with slope 2. What is the value of y?

2007-11-23 08:37:17 · 3 answers · asked by Anonymous

2007-11-23 08:32:21 · 8 answers · asked by Anonymous

Well this was a question in a maths test a sat but i'm not sure if I got it right. The question was "Why can't a regular pentagon tessellate but a regular hexagon can" or something along those lines. Then there was a picture of hexagons tessellating and one of their interior angles marked 120 degrees if this helps. Thanks heaps.

2007-11-23 08:27:19 · 10 answers · asked by adg 2

Find the equation of the plane through (2,2,1) that cuts off the smallest volume of the 1st octant..... pls, help...I'll need explanations, not that the answer on this one..thanks!

2007-11-23 08:19:30 · 3 answers · asked by Diana B 2

Tamika and Lydia were making hair ribbons to sell at a crafts fair.Tamika cut seven segments from onne length of ribbon and had 2 feet left over.Lydia said "im cutting segments twice as long as yours.If you length of the ribbon had been just 1 foot longer.i could have cut four segments from it. From their conversation determine how long Tamika's and Lydia's segments were.

Nine Square tiles are used to cover a floor that covers 36 square feet.
Write and solve an equation to find the dimensions of the tiles.

If you cant help me with both problems can u at least help me with at least one of them i would really appreciated .

2007-11-23 08:18:01 · 6 answers · asked by tita 2

2007-11-23 08:14:54 · 2 answers · asked by Jillian R 1

2007-11-23 08:12:04 · 5 answers · asked by Anonymous

2007-11-23 08:07:36 · 8 answers · asked by ernest 1

2007-11-23 08:07:09 · 7 answers · asked by Anonymous

Vectors question. Help!?
Given that the vector ai + 3j is parallel to the vector 2i + 12j, find a

2007-11-23 08:02:51 · 2 answers · asked by Anonymous

Express (2-3√5)^2 in the form a+b√5, where a and b are intergers.

Can you show me how to work it out so I can understand it.

2007-11-23 07:58:39 · 5 answers · asked by Luke M 1

2007-11-23 07:54:47 · 5 answers · asked by nafiseh g 1

2007-11-23 07:53:09 · 9 answers · asked by Anonymous

carmen needs to make at least $550 per month to pay for college classes.she recieves $200 per month from a scholarship and earns $ 7.00 per hour at her job.

based on the above info,write an inequality that could be used to find the number of hours carmen must work each month to pay for classes.use n for the numbers of hours.

write your inequality here.

2007-11-23 07:51:24 · 6 answers · asked by Anonymous

a particle is moving along the curve y= sqrt(x). As the particle passes through the point (4,2) , its x-coordinate increases at a rate of 3 cm/s. How fast is the distance from the particle to the origin at this instant?

2007-11-23 07:48:05 · 1 answers · asked by da 1 n only- jose 1

At 13:30 helicopter B makes an emergency landing at (168i + 49j) km, A immediately changes direction (from ( 49i and 144j ) km and flies at 120 km/h in a straight line to B. Determine the time when A reaches B

Velocity of A=72i+96j
Velocity of B+ 0i+ 0j

2007-11-23 07:47:14 · 1 answers · asked by Anonymous

This question is possibly using a numbered alphabet (A=1,Z=26) so the sequence might be 3,1,18,18,?. But I am still not seeing the pattern. Any solutions?

2007-11-23 07:46:27 · 5 answers · asked by Nick R 1

I need help with this test review question.

A total of $40,000 was invested at two interest rates, 6% and 8 %. The total interest for the first year was $2,860. How much was invested at each rate?

I have other problems like this so please sho all of your steps. Thanks.

2007-11-23 07:43:26 · 1 answers · asked by Anonymous