Mathematics - 14 December 2007

x to the power of -1/2

what does this mean

2007-12-14 23:57:28 · 4 answers · asked by Jim 1

(in simplest form)

NOTE: If you simplify f(x) = (x^2-4)/(x-2) first, and THEN take the derivative, the first derivative is 1

2007-12-14 23:11:38 · 5 answers · asked by Anonymous

thanks, please show me how you did it as well

2007-12-14 22:57:38 · 17 answers · asked by I-like-to-answer-you 2

If -2d+5= -31, what is the value of 3d-9?

I need to know how you would do this...'cause I really have no idea what it's asking. Damn math! ( e_e)9

2007-12-14 22:40:17 · 7 answers · asked by Anonymous

Let,
Points
A=1
B=2
C=3
D=4
E=5
F=6
G=7
H=8
I=9
J=10
K=11
L=12
M=13
N=14
O=15
P=16
Q=17
R=18
S=19
T=20
U=21
V=22
W=23
X=24
Y=25
Z= 26.
So, find any word of 100 points.
Like this,
DOG
D=4, O=15, G=7
4+15+7=26
But I want 100 points of word.

2007-12-14 22:13:23 · 4 answers · asked by *VJ* 2

prove that agroup of order 12 must have an element of order 2

2007-12-14 21:47:31 · 2 answers · asked by Anonymous

Solve.

(x + 2)(x - 3) = x^2 - 11




and




3x^2+18x - 2 = 0




Please show steps.

2007-12-14 21:40:18 · 7 answers · asked by Anonymous

I came up with:

-7 +/- (sqrt47)

2007-12-14 21:24:09 · 9 answers · asked by Anonymous

I came up with:

+/- (sqrt14)/9

2007-12-14 21:16:38 · 9 answers · asked by Anonymous

letIGI =15 if G has only one subgroup of order 3 and only one of order 5 prove that G is cyclic generize for IGI =pq

2007-12-14 21:16:25 · 1 answers · asked by Dana S 1

I'm drinking jim beam and cola cans, but nearly ran out (its nearly 8pm here in aus!), and will have to move onto the bottle next!, (gee, what a shame!), but, the cans are 440ml, at 5% alcohol, and the bottle is 700ml @37%alcohol, so, my question is this!, how much bottled beam do i mix with how much coke, to get the same ratio as the cans?.. and ergo, how much coke would i need to mix the whole bottle at that %age?... thanks in advance, might not be capable of typing them later!...

2007-12-14 19:45:43 · 4 answers · asked by Anonymous

Could you explain how I could get the answer. Thanks guys!

2007-12-14 19:18:50 · 6 answers · asked by Anonymous

Thank you!

2007-12-14 19:09:03 · 8 answers · asked by Anonymous

2007-12-14 18:53:20 · 5 answers · asked by Anonymous

How do I find each of these complex numbers and Write the complex number in its usual form? All you have to do is show me one. Thank you.
Complex Number 1: i
Complex Number 2: i2 (so this just means i•i )
Complex Number 3: i3 (so this just means i•i•i )
Complex Number 4: i4 (in other words, i•i•i•i )

2007-12-14 18:45:32 · 7 answers · asked by Anonymous

1. 9^2x = 27^x - 1

2. 5^n-1 = 1/25

3. 25^x = 5^x2 - 15

4. 2^x * 4^x+5 = 4^2x-1

5. (sqrt3)^2x+4 = 9^x-2

2007-12-14 17:57:54 · 3 answers · asked by Anonymous

an electronics firm makes two types of switching devices. type A takes 4 minutes to makes and requires $3 worth of materials. type B takes 5 minutes to make and requires $5 worth of materials. when the production manager reviewed the latest batch, he found that it took 35 hours to make these switches with a materials cost of $900. how many switches of each type were produced for this latest batch?

2007-12-14 17:31:08 · 6 answers · asked by sweetypie1288 1

pls give tips and great websites too. please explain thoroughly your answer, like if you're going to say practice, state what to practice. thank you guys

2007-12-14 17:23:08 · 12 answers · asked by Anonymous

y = -x^2 + 2x

2007-12-14 17:19:46 · 4 answers · asked by Anonymous

There are 7 shelves on a bookshelf. If on hardback book is roughly the size of 2 paperback books, and each shelf can hold approx. 45 paperback books, then which of the following could be the total number of books to be shelved on and completely fill this particular bookcase?
a. 285 paper/15 hard
b. 315 paper/15 hard
c. 15 paper/15 hard
d. 15 paper/285 hard
e. 150 paper/165 hard

2007-12-14 17:18:32 · 10 answers · asked by helen 2

2007-12-14 17:13:13 · 5 answers · asked by Anonymous

plan has a $22 one time activation fee, and charges .10 a minute. the second plan has no activation fee, and charges .14 cents a minute. After how many minutes of calls will the two plans be equal?

2007-12-14 17:10:44 · 4 answers · asked by Trisha 2

I forgot :(

2007-12-14 17:08:47 · 13 answers · asked by Axis Flip 3

I was given two planes in the form ax + by + cz = d
If you have their normals (a,b,c),

Say, u = (2,-1,2)
and v = (1,2,-3)

Can you easily tell if these are the same plane?

________________

u.v = -6

and

u is not a non 0 multiple of v so therefore not parallel.

What is the last test to see if the planes are coincidental?

2007-12-14 16:49:37 · 4 answers · asked by Anonymous

2007-12-14 16:42:16 · 6 answers · asked by Trisha 2

4-(-6)
--------- = and please explain
-5

2007-12-14 16:11:25 · 9 answers · asked by Christina A 1

2007-12-14 15:54:12 · 10 answers · asked by missyej 1

Write the expression as a sum, difference, or multiple of logarithms.
Log (base 4) (16x^3/y^2z^4)

2007-12-14 15:02:41 · 3 answers · asked by arneboy2 1

the total receipt for a concert amounted to 2,600 dollars. students were sold at $4 each and non student tickets at $6 each. the number of students tickets sold was 5 times the number non student tickets sold. How many student tickets and how many non student tickets were sold??

2007-12-14 14:43:54 · 4 answers · asked by LuvPitz2theMax 1

Show that the union of a countable collection of sets of measure zero is zero.

Find an uncountable collection of sets of measure zero whose union has positive measure.

2007-12-14 14:01:48 · 4 answers · asked by N 1