Mathematics - 28 November 2007

add and express in simplest form.



4y/y^2+6y+5 + 2y/y^2-1

2007-11-28 04:46:46 · 4 answers · asked by God Bless America!~ 4

can anyone help me with this
I would appreciate it more then you know

2007-11-28 04:46:12 · 3 answers · asked by arcrose 1

refer to the triangle in the figure. find an expressioin that represents its perimeter. note: theres a pic of a triangle and it labels 3/4x, 1/x^2, and 5/x^2 on each side...not sure what to do...help!

2007-11-28 04:39:46 · 4 answers · asked by God Bless America!~ 4

f(x)= 1/x around the x axis. Find the volume of Torricellis Trumpet when X [1,10].
I dont know where to begin for would prefer someone to help point me in the right direction?

Is it Pi (Integral from 1 to 10) 1/x? take the integral of 1/x (being (2/3) X) and substitue? = Pi [(2/3) X] (1 to 10)

2/3 pi - 20/3 pi = -6 pi? This is all guess work because i'm not too sure of myself with finding volume.

2007-11-28 04:37:53 · 3 answers · asked by Matthew S 1

maths question

2007-11-28 04:36:13 · 13 answers · asked by Jenny 3

subtract

1. 2/5w+10 - 3/2w-4




2. 3/x^2+4x+3 - 1/x^2-9

2007-11-28 04:35:26 · 3 answers · asked by God Bless America!~ 4

All I know is sin(90) = 1, sin(0) = 0, sin(30) = 0.5, cos(0) = 1, cos(90) = 0.

Yes, I could use a calculator now, but I need to know how to figure it out without aid, else I'll be helpless on my exams.

If I'm given something like sin(60), sin(50), cos(30), or cos(45), how could I figure these out without a calculator?

2007-11-28 04:33:02 · 9 answers · asked by A 1

1. Solve the triangle, B = 37 degrees 20 minutes, b = 4.08, a = 24.78

My answer is no solution.

2. Solve the triangle B = 20 degrees, C = 70 degrees, a = 1

My answer comes out to:

A = 90 degrees
b = .34
c = .93

Am I correct?

Thanks.

2007-11-28 04:26:51 · 1 answers · asked by labelapark 6

Evaluate:
-infiniti
∫ x dx/(x^2+5)^2
0

2007-11-28 04:20:21 · 2 answers · asked by A4life2k4 1

LOOK AT THE PICTURE

One square is inside another square...the distance from the edge (diagonally) of the outer square to inner square is 2.
The lenght of the side of the outer square is 10...how much is the lenght of the inner square
see picture....
http://tinypic.com/view.php?pic=8ezrfgz&s=1

2007-11-28 04:10:57 · 6 answers · asked by kdat 1

so far all i have is f(1/4)= log2^1/4

2007-11-28 04:05:12 · 4 answers · asked by ALF 2

1) The length of a rectangular playing field is 5ft less than twice it's width.If hte perimeter of the playing field is 230 ft,find the length and width of the field .
2) A byciclist rode into the country for 5h. In returning her speed was 5mi/h faster and the trip took 4h.tWhat was her speed each way?

2007-11-28 04:04:24 · 4 answers · asked by Anonymous

Is there any Riemann integrable bounded function on a closed and bounded interval [a,b] which has primitive function and it does not satisfy the Second fundamental theorem of calculus?

2007-11-28 04:04:23 · 1 answers · asked by Soheil 1

lol, I can only think of doing it the really long way...

2007-11-28 04:01:04 · 8 answers · asked by Anonymous

I'm really bad with algebra and I only need the basic level for my degree but I can't place into the class I need. Is there a way that I can cheat on the placement test?

2007-11-28 03:59:47 · 8 answers · asked by Anonymous

I got a 78% in the class. The project is worth 60% of the class. The passing grade is 60%.

Me and my class, is doing a project instead of a final exam.
The class is called Office Procedures.

2007-11-28 03:49:30 · 5 answers · asked by Misty 2

square root of y+7=5

2007-11-28 03:46:41 · 2 answers · asked by Anonymous

A child’s bank contains $6.30 in dimes and quarters. There are twice as many dimes as quarters. How many of each kind of coin are in the bank?

a 24 dimes and 12 quarters

b 26 dimes and 13 quarters

c 28 dimes and 14 quarters

d No solution, not enough information.



The average of four consecutive even integers is 17. Find the integers.

a 15, 16, 17, and 18

b 16, 18, 20, and 22

c 14, 16, 18, and 20

d No solution, contradictory facts

2007-11-28 03:46:28 · 5 answers · asked by wish on a star 1

2007-11-28 03:46:13 · 1 answers · asked by (ƸӜƷ) 1

Data was collected on the average winter temperature and the number of days with snow of a random group of cities in the United States. Identify the correlation you would expect to see between the average winter temperature and the number of days with snow.

2007-11-28 03:39:40 · 2 answers · asked by rain_zazzy 2

2007-11-28 03:30:48 · 13 answers · asked by Amy 6

Consider a rectangular industrial warehouse separated into 3 rectangular spaces of equal size. Assume that the wall materials cost 200$ per linear foot and the company allocates $2400,000 for the project. Find the area of each compartment if the total are of the warehouse is a maximum. Anyhelp is appreciated!

2007-11-28 03:30:15 · 1 answers · asked by Erika H 5

I have this speech class in a community college (9 week session)
8-11 am (the teacher let sus out at 10:30)
there are a totoal of 16 days of class (exluding veterns day...I don't know if that still counts.
I've been absnt 3 times
in the college handbook, it reads.
When the hours of absence exceed one more than twice the number of class hours per week, the students are considered excessively absent

2007-11-28 03:25:56 · 20 answers · asked by Anonymous

the bottom is 8.slope side is 12 and the other side is x. please help

2007-11-28 03:24:39 · 2 answers · asked by Anonymous

2007-11-28 03:18:05 · 4 answers · asked by Anonymous

i did alright but i guess i got every question about % wrong

so how do i know if i pass do i need to get mostly right to pass that test

2007-11-28 03:07:32 · 3 answers · asked by Monster 1

2007-11-28 03:03:00 · 4 answers · asked by Anonymous

2007-11-28 02:53:48 · 3 answers · asked by Hyperbolic Logic 2

2007-11-28 02:52:55 · 1 answers · asked by Hyperbolic Logic 2

The towers of the Golden Gate Bridge connecting San Francisco to Marin County are 1280 meters apart and rise 160 meters above the road. The cable between the towers has the shape of a parabola and the cable just touches the sides of the road midway between the towers.

Coordinates for tower: (640, 160)

1. What is the height of the cable 200 meters from a tower? Round to the nearest meter.

2. Use this problem to explain why mathematics can be an evolving discipline, interrelated with human culture, and its connections to other disciplines.

2007-11-28 02:43:17 · 1 answers · asked by Anonymous