Mathematics - 6 September 2007

answer what you know i got most of it done but got stuck on these?
X^2 - 6X+9 < 16

X^2 +2X > 3

X^2-4x-1 > 0

-2x^2+6X+15 = < 0

X^3+2x^2-4x-8 =< 0

2x^3+13x^2-8x-46 >= 6

4X^3-12^2 > 0

2X^3-x^4 =<0

2007-09-06 11:24:16 · 4 answers · asked by ? 2

cuz i need help!
If the diagonal of a square has a length of 4[radical]2, then the perimeter of the square is
(1) 8
(2) 16
(3) 16[rad]2
(4) 32

can someone explain it to me and break it down please?

2007-09-06 11:22:54 · 4 answers · asked by Anonymous

2007-09-06 11:21:50 · 4 answers · asked by help 1

I am trying to figure this out and its driving me nuts because it doesn't come out right. OK ... here goes... I just bought a dog exercise pen. It is made up of 8 panels, each 2 feet wide. If I set it up as a square..meaning..4X4X4X4 feet. So thats 2 feet wide by 2 panels = 4 feet square and that equals 16 Square feet. Right?
But if I set the same 8 panels up as a rectangle, its 3 panels on each side = 6 feet and 1 panel on the end = 2 feet how come it comes to 12 square feet instead of 16'? Its the exact same 8 panels, that are each 2 feet wide. Its making me crazy trying to figure out why? Thanks alot.

2007-09-06 11:15:10 · 2 answers · asked by kingsley 6

2 0.375
4 0.188
6 0.125
8 0.094
10 0.075

These are the values of the graph. (x,y) I have to manipulate the x coordinates in any way so that they make what looks like a linear graph when u plot the points. Right now it looks like a curve...can anyone help?

2007-09-06 11:08:21 · 2 answers · asked by Anonymous

4x - 2 = 5x + 10 = 3x - 8 I need Help!!!!

2007-09-06 11:07:28 · 5 answers · asked by Patrice D 2

there are two perfect number out of 100.
what are they

2007-09-06 11:04:52 · 4 answers · asked by Anonymous

There is a very long hallway, longer than the eye can see. Along the midline of its ceiling, there are light bulbs, spaced a few feet apart, for as long as the eye can see. A string hangs from each light bulb; a pull of the string turns the light bulb on, and another pull turns the light bulb off.
A woman begins walking down the hall and pulls every single string, turning all of the light bulbs on. A second woman begins walking down the hall and pulls every second string (2,4,6,...), thereby turning off each of those light bulbs. And then a third woman begins to pull every third string (3,6,9,...), thereby turning some light bulbs on and others off. And then a fourth woman does the same (4,8,12,...), and then a fifth woman (5,10,15), and so on. Eventually, the women are only pulling strings that are farther away than can be seen.
Of those that can be seen, which light bulbs are on?

You don't have to give me the answer, but how would you go about answering this?

2007-09-06 11:00:44 · 3 answers · asked by Anonymous

If two sides of a square field were increased by five feet, the area of the field would increase by 245 ft squared. Find the area of the orginal square. Can anyone tell me how I would solve this problem

2007-09-06 10:59:02 · 7 answers · asked by Anonymous

2007-09-06 10:56:23 · 4 answers · asked by Harjizzle 1

math

2007-09-06 10:48:44 · 14 answers · asked by san martin 1

of course i know what less than and greater than is but what does a greater sign mean with a line under it.

2007-09-06 10:41:41 · 4 answers · asked by Anonymous

Having some difficulty with this subject
The plane through the point (-2,8,10) and perpendicular to the line
x=1 +t, y= 2t, z=4-3t

also diff scenario:
Find the point at which the line intersects the given plane:
x=1 + 2t, y =4t, z=2-3t; x+2y-z+1 = 0

Thankyou for your time and help

2007-09-06 10:34:27 · 3 answers · asked by JOE 2

I've heard 3. I've heard 3.5. I've heard 4. I've even heard 6! And so I don't waste 5 points, how long is a mile? (Describe in anyway you think earns 10 points! lol...)

2007-09-06 10:31:20 · 13 answers · asked by Kiss 2

Hey guys. I am having problem with my algebra worksheet.

Take a look at the picture below. Just copy and past that into your adress bar. The directions state "sunokuft tgese terns by splitting the squares.

For the first person to explain to me how to do those equations in a way a 14 year old would understand will get best answer. 10 pts.

picture link:
http://i121.photobucket.com/albums/o204/nunsofamerica/algebra.jpg

Thanks

2007-09-06 10:30:25 · 4 answers · asked by Ryan 2

ok my little brother has this worksheet with order of operations. he has to add the grouping symbols in the correct place. the 2 operations are four times 2 minus 2 to the second power divided by 9 and plus 2 and it has to equal 6.

the 2nd is
six times seven minus three times four plus one and has to equal 27. PLEASE HELP

2007-09-06 10:25:37 · 6 answers · asked by Anonymous

2007-09-06 10:21:12 · 4 answers · asked by goatcheese 1

The selling price of a refrigerator is $584. If the markup is 25% of the dealer's cost, what is the dealer's cost of the refrigerator? (please show work)

2007-09-06 10:17:56 · 6 answers · asked by aajain03 1

solve the following equation:2/3(X-1)-1/5(x-3)=x+1

2007-09-06 10:16:56 · 3 answers · asked by Loki 1

Mmk I just need sort of a reminder of the steps.
Heres the problem:
9y+4=2y+25
I know to subtract 4 from four and 25 and that leaves me with:
9y=2y+21
Do I divide 2y bye 9y?

2007-09-06 10:11:20 · 4 answers · asked by dothemooshoo247 3

The question are
1. A frog is at the bottom of a 30-foot well. Each day he jumps up 3 feet, but then during the night, he slides back down 2 feet. How many days wil it take the frog to get to the top and out?

2.A 30-foot cable is suspended between the tops of tow 20-foot poles on level ground. The lowest point of the cable is 5 feet above the ground. What is the distance between the 2 poles?

Thank you soooo much.

2007-09-06 10:06:03 · 2 answers · asked by Asian_Shawty 2

I need help on a piecewise function:

f(x) = { x if - 5
{ (x+2)^2 if - 3 < x
{ -x + 4 if x > 0


1. Which of the following can be conclude about limit x --> 0 f(x)

a) The limit does not exist since the right- sided and left- sided limits approaching x = 0 differ.

b) The limit does not exist because the function is not defined at x = 0.

c) The limit exists, and it’s equal to four.

d) The left-sided limit exists, but the right- sided limit does not. Thus, the limit does not exist.


2. What type of discontinuity occurs at x = -3?

a) No discontinuity exists at x=3.

b) Jump discontinuity.

c) Infinite discontinuity.

d) Removable discontinuity.


3. Determine the limit x --> infinity f(x) = ???


Thanks in advance...

2007-09-06 10:05:46 · 3 answers · asked by Anonymous

Could someone help me with these math questions? Thanks.

0.65 / 0.1

0.75 x 0.001

(-6) + (-4)

2007-09-06 10:04:39 · 9 answers · asked by Summer_101 1

Write an equation.

through (-2,1) and parallel to y= -3x+1

2007-09-06 10:02:32 · 3 answers · asked by niclyl7 1

2007-09-06 10:02:30 · 3 answers · asked by il0veyou101 2

I need help with this one quick. Anyone please help me out and please just dont answer it. If you can do the steps, open up paint or a drawing program and draw the steps, include the trig circle, its not hard to draw. Just save it as a picture and send it to me through e-mail. It would be greatly appreciated.
Thanks

2007-09-06 09:54:00 · 5 answers · asked by neverisenough 1

A -mile track for racing stock cars consists
of two semicircles connected by parallel straightaways (see
the figure). In order to provide sufficient room for pit crews,
emergency vehicles, and spectator parking, the track must enclose an area of 100,000 square feet. Find the length of the
straightaways and the diameter of the semicircles to the nearest foot. Recall: The area A and circumference C of a circle of diameter d are given by A= pie times diameter squared divided by 4 and c= pie times diameter

i have no clue where to even start I am lost...
I dont expect the anwser
if someone could just explain to me how to get it into a number problem and out of a word problem and set it up so its ready to be solved...

as much details as possible would be great so i can understand it better... thanks a bunch for anyone that takes the time to help me... out... algebra will be the death of me

2007-09-06 09:49:15 · 4 answers · asked by Anonymous

how to solve this??

2007-09-06 09:45:31 · 2 answers · asked by akyl_riza 2

HELP
How do I find the sequences?
-1, 0, 3, 8, 15, 24,
0, 3, 8, 15, 24, 35

2007-09-06 09:40:45 · 12 answers · asked by Jilly C 2

2007-09-06 09:38:51 · 5 answers · asked by la la la 2