Mathematics - 15 August 2007

The polynomial function with a degree of 5 with -2 as a zero of multiplcity of 3, 0 as zero of a multoplicity of 1, and 2 as a zero of multiplcity 1.
i know the answe is something like this, but im not 100% sure..

x^5 + 2x^4 - 4x^3 - 4x^2

does this look right ?

2007-08-15 17:43:31 · 2 answers · asked by sf 1

How can you determine if two lines are perpendicular?

2007-08-15 16:35:13 · 11 answers · asked by ? 2

(3-4i)^2

2007-08-15 16:25:34 · 4 answers · asked by Anonymous

I cant remember how to do this sort of problem. If you could answer and tell me how to get to the answer in a good amount of detail, that would be great!

2007-08-15 16:15:22 · 7 answers · asked by Amberlyn 1

f(x)=7x^4+14x^3-168x^2

2007-08-15 16:12:49 · 4 answers · asked by Ke-Man 2

divide?

2007-08-15 15:10:18 · 5 answers · asked by Anonymous

Consider the initial-value problem
y' = -y, y(0) = 1.
The analytic solution is: y(x) = e^(-x).

(a) Approximate y(0.1) using one step Euler's method.
(b) Find a bound for the local truncation error in y_1 (where '_' means subscript).
(c) Compare the error in y_1 with your error bound.

Thanks!

2007-08-15 14:39:17 · 1 answers · asked by amckee851 1

Your next door name is expecting faternal twins. Since she knows that it is a pssibility of having at least one boy she wants you to help her determine some possible names.

I made a list of 5 boy name ( fred, bob, joe, bill, and ted)

i need to use the names you have chosen and tell how many ways she could name the baby boy using a first name and a different middle name from my list.

I think the answer is 25 ... but i don't know how i got and how to explain it ... please help.

2007-08-15 14:01:55 · 6 answers · asked by Anonymous

2007-08-15 14:00:50 · 15 answers · asked by batulsaid 1

sketch the graph of the function. Identify the vertex.
f(x)=(x+2)^2-1

2007-08-15 14:00:50 · 3 answers · asked by Ke-Man 2

write a verbal expression for each algebraic expression..

1.w- 1 2.1/3 a with a tiny 3 at the a

3.81+2x

2007-08-15 13:54:11 · 2 answers · asked by needs advice 1

15. Geometry. A homeowner wishes to insulate her attic with fiberglass insulation to
conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between
the rafters in the attic. If the roof is 6 m from peak to eave and the attic space
is 2 m high at the peak, how long does each of the pieces of insulation need to be?
Round to the nearest tenth.

16. Geometry. For the home described in exercise 15, if the roof is 7 m from peak to
eave and the attic space is 3 m high at the peak, how long does each of the pieces
of insulation need to be? Round to the nearest tenth.

2007-08-15 13:47:36 · 3 answers · asked by Anonymous

a stream flows at a rate of 5mph. a boat travels 75mi downstream and returns in a total time of 8hr. what is the speed of the boat in still water?

2007-08-15 13:39:40 · 5 answers · asked by kim s 1

At a concert the audience enter the venue at a rate given by:
dN/dt = 10t - t^2/12 until all audience has been admitted. N is number of people admitted and t is minutes after opening.

How long does it take to admit all the audience?
How many people were admitted?

2007-08-15 13:38:01 · 2 answers · asked by Anonymous

jeez sorry to bother you guys with this but i have been working on this problem and just cant seem to solve it
o have been thinking that the answer is impossibe.. help me out

I have two minutes in which to catch a train and two miles to go. If I go the first mile at 30 mph, at what rate must I go in the second mile in order to catch the train?

2007-08-15 13:30:30 · 1 answers · asked by Anonymous

2/5x-1/3x=4

2007-08-15 13:29:49 · 11 answers · asked by Santos™ 3

OK, keep it simple!!!!
Pi is an infinite series of numbers, but it never reaches 3.15
A Third as a decimal (is this just a problem of the base 10 system?)
Think of a number, then add 1

2007-08-15 13:25:00 · 5 answers · asked by Michael K 1

*NOTE.. 2 radians, not 2 pi radians**
show work please

2007-08-15 13:24:15 · 3 answers · asked by Mr.Deeds 5

I just need the values of the following.

1. i^-20
2. i^-25
3. i^-30
4. i^-102

These will help me with my homework. I need to understand how i reacts with different exponents.

2007-08-15 13:22:45 · 2 answers · asked by Anonymous

im refreshing myself on mind becuz i havent studied it in a year and i know my answer is dead wrong.


{ [ 18-2*6] - [40/ (17-9) ] } + {48- 13*3 + [ (50- 7* 5) +2 ] }

*means multiply
/ means divide

please help me

2007-08-15 13:19:50 · 15 answers · asked by eye-luv-jay 1

I have 120 audio book files on one CD. My MP3 player allows me to select by directory and then by the file. There are just 2 buttons I can use - next directory, and next file. It does not matter how I divide the files into differenct directories. Currently, I have all 120 files in one directory. This means I have to press a button 12o times to reach the last file. How can I minimise the number of key presses to ANY file?

2007-08-15 12:49:54 · 3 answers · asked by Hearts 1

I want to simplify 2 sqrt5 / (sqrt2 +5)

I'm not sure what to do with the ()s.
Please help.

2007-08-15 12:49:23 · 3 answers · asked by Dude 3

Hi,
I'd like ask for an explanation on the method of factoring equations with a number before the first variable. Something like 10x^2 + 15x - 10 for example, were x^2 is preceded by the number 10. Additionally, if it's not too much to ask, I'd like to request an explanation on how to solve 2x-xy^2. Thank you!

2007-08-15 12:43:27 · 3 answers · asked by Quasar 2

Use elimination to solve each system of equations.

1. 6x-5y=27
3x+10y= -24

2. 11x-5y=80
9x-15y=120

3. 5x+3y=12
4x-5y=17

thank you so much = )!!!

2007-08-15 12:25:45 · 4 answers · asked by javier c 3

While on vacation, Kevin went for a swim in a nearby lake. Swimming against the current, it took him 8 minutes to swim 200 meters. Swimming back to shore with the current took half as long. Find Kevin's average swimming speed and the speed of the lake's current.

2007-08-15 12:15:02 · 8 answers · asked by Anonymous

simplify the expression.

(-z)^3 (3^4)

Isn't it already simplified because you can't combine -z with z.
Help?

2007-08-15 12:13:33 · 3 answers · asked by Anonymous

NEXT THREE NUMBERS PLEASE
18,9,0,-9 . . .
6,8,12,18. . .
-11,-6,-1,4. . .
9,10,13,18. . .
1,7,19,37. . .

2007-08-15 12:08:18 · 3 answers · asked by Anonymous

I'm stumped on this question. I originally got 20 days as my answers, but that was incorrect according to my teacher. Could someone please assist me? Thank you so much!

"If a chicken-and-a half can lay an egg-and-a half in a day-and-a half, how many days will it take two chickens to lay twenty eggs?"

2007-08-15 11:30:11 · 6 answers · asked by sg88 1

10.15+31.60
+34.75+40+
69.25+54.75=

2007-08-15 11:30:04 · 6 answers · asked by Anonymous

2007-08-15 10:58:58 · 5 answers · asked by Myia M 1