Mathematics - 25 November 2007

Calc I, no need to get extreemly complicated

2007-11-25 18:09:56 · 1 answers · asked by Firm_Cross 2

Solve the following equations...

^=powerof

1. 8x^5-6x^2+12x^3-9=0

2. x^3=9x

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


If you don't want to do all, can you do one and show a relatively detailed process of how you figured it out. Thanks! I really need to figure these out soon.

2007-11-25 18:07:50 · 5 answers · asked by Anonymous

...advanced display systems, extensive communications systems (including satellite data links), and intelligence equipement used in air and surface surveillance operations?
Anything u might think is needed to study for these would be very helpful. Thanx

2007-11-25 17:55:58 · 1 answers · asked by Anonymous

2007-11-25 17:50:32 · 3 answers · asked by diversity 1

2007-11-25 17:40:30 · 6 answers · asked by momdipuma 1

Hi
I'm 13 and in grade 7 and just suck at my times tables
I can get most stuff all the way up to the 6 tables....i can get 9's but 6s 7s and 8s i just can memorise
Any Help?

And please no
"lol you u not know dem know?"
or and other crap

2007-11-25 17:37:43 · 4 answers · asked by A guy 2

2007-11-25 16:53:15 · 9 answers · asked by Anonymous

use the second derivative to find the relative extrema of
f(x) = x - 4 * square root of (x+1)

2007-11-25 16:46:26 · 1 answers · asked by veni vidi vici 1

using rolle's theorem, find all c's



using mean value theorem find all c's

8x^3 + 8x - 5 [0,2]

help meee

2007-11-25 16:41:36 · 1 answers · asked by jenny 2

Okay i have to have these checked can you help me out?
x+y=5
x-y=9

3x=6
y-2x=-8

is (-4,16) the solution on this system of equations
y=8-2x
y=12+x


is (5,0) the solution
3x+y=15
2y-2.5=-0.5x



Admission fee is $1.50 for children and $4.00 for adults. 2,200 people enter the fair. $5050 is collected

write an equation showing the total number of people at the fair

write an equation showing the total cost the fair collected

2007-11-25 16:35:32 · 1 answers · asked by insanity 4

2007-11-25 16:26:44 · 5 answers · asked by sz91 1

can you give the vertex point and x-intercepts for each question? I'm lost!

f(x)= -4x2power + 4x

f(x) x2power -4x +6

-2x2power -x = -4

2007-11-25 16:23:52 · 2 answers · asked by Anonymous

Hi I'm having a lot of trouble with this question, any help or hints on either or both would be greatly appreciated! These two parts are part of one question so they should go together.
---------

1) Suppose that {x_n} is a sequence in a metric space X with some distance function d(x,y), and that z is a point in X s.t. for each subsequence {x_n_k} of {x_n} there exists at least one sub-subsequence {x_n_k_l} which is convergent to z. Prove that {x_n} is convergent to z.

2) Then consider the function f:X*X->R (f is a mapping of the cartesian product of X with X into the real numbers)
and let f(x,y)=d(x,y)/(1+d(x,y)) for all x,y in X.

Show that f defines a distance function on X and that the identity mapping from X to X is uniformly continuous when viewed as a mapping between metric spaces in either way: (X,d)->(X,f) or (X,f)->(X,d)
(X,d) means metric space X with distance function d(x,y), likewise (X,f) means metric space X with distance function f(x,y).


Thank you so much!

2007-11-25 16:19:07 · 1 answers · asked by greeneggs4spam 3

Which of the following is equivalent to sin (90* + x)

sin(x)
cos(x)
sin(-x)
cos(-x)
-cos(x)

2007-11-25 16:17:06 · 4 answers · asked by dustin_r_85 1

Find the equation of the circle centered at (h,k) = (-4,-2) and passing through the point (-1,2)

2007-11-25 16:14:46 · 3 answers · asked by dustin_r_85 1

x+2y=8
x=-2y+8

2007-11-25 16:10:39 · 3 answers · asked by joe78521 2

A company is engaged in direct marketing of exercise CDs that sell for $ 18, including shipping and handling. The monthly fixed costs (advertising, rent, etc.) are $ 24000 and the variable costs (materials, shipping, etc) are $ 6 per CD.

Ok so far I'm here: 24000+6x as my cost function...

How do I find my revenue function and the break even points???

2007-11-25 15:57:47 · 3 answers · asked by RedSparkle 1

and the slope of the line y=2/3x+6??

thanks!

2007-11-25 15:53:41 · 14 answers · asked by Anonymous

2007-11-25 15:47:52 · 6 answers · asked by Mandy P 1

timothy was 7 years old when ada was born. hal, who is 5 years older than timothy, is now 3 times as old as ada. how old is each person now?

2007-11-25 15:45:29 · 3 answers · asked by wowz 2

management thinks that 45 % of current stockholders will want to make a purchase. A random sample of 130 stockholders is selected, 63 of whom express a desire to buy.
(a) what is the standard error of the sample proportion?
(b)what is the mean of the sampling distribution of sample proportion?
(c) what is the probability of obtaining the results described in the problem if p = .45?

seem to have gotten rusty over the holiday, don't remember how to do this question. help is appreciated.

2007-11-25 15:31:34 · 1 answers · asked by Andrew B 2

I already asked this question, but I did not recieve a clear enough answer, and they changed base 2 to 4.

log base 2 (3x+2) - log base 4 (X) = 3

The book says to change log base 4 to 2. Its not so much the answer I am looking for, just how this works.

2007-11-25 15:14:47 · 5 answers · asked by John 1

** = square root

SIMPLIFY
4*12* - *18* + *108* + 7*72*

SIMPLIFY
(7 - *5*)(3 + 2*5*)

2007-11-25 15:07:42 · 1 answers · asked by darkmage1235 2

the product of any two self adjoint operators on a finite dimensional inner p=roduct space is self adjoint...... No non-sense replies please, just if you know the answer or can help. thank you..

2007-11-25 14:56:35 · 1 answers · asked by handsome_joy 3

k the teacher said ROUND ANSWERS TO 2 DECIMAL places so if i have the number 26213.64 or 19150.08 what does that round off to thank you

2007-11-25 14:54:21 · 5 answers · asked by Ash 1

Show that if G is a finite group with identity e and with an even number of elements, then there is a ≠ e in g such that a* a = e.

2007-11-25 14:48:02 · 3 answers · asked by Anonymous

Let G be a group and let a,b ϵ G. Show that (a*b) ′ = a′ * b ′ if and only if a* b = b*a.

note: ϵ is an element, ′ is prime.

2007-11-25 14:31:49 · 2 answers · asked by Anonymous

Let c be a positive number. A differential equation of the form

dy/dt = ky^(1+c)

where k is a positive constant, is called a "doomsday equation" because the exponent in the expression ky^(1+c) is larger than that for natural growth (that is, ky).

a) Determine the solution that satisfies the initial condition y(0) = y_0.
b) Show that there is a finite time t =T (doomsday) such that lim t->T- y(t) = infinity
c) An especially prolific breed of rabbits has the growth term ky^1.01. If 2 such rabbits breed initially and the warren has 16 rabbits after three months, then when is doomsday?

show work/steps plz..thanks!

2007-11-25 14:07:24 · 1 answers · asked by Anonymous

Complete the square to find the x-intercepts of each function given by the equation listed:

1] g (x) = x^2 + 4x +2

2007-11-25 13:58:30 · 1 answers · asked by Anonymous

Replace the blanks in each equation with constants to complete the square and form a true equation.

1] x^2 + 7x + __= (x+___)^2

2] t^2 -(5/3)t + ___ = (t-____)^2

2007-11-25 13:52:24 · 3 answers · asked by Brandon 1