Mathematics - 3 October 2006

8^(3x+1)-8^(3x)=448

Please show your work too....

2006-10-03 10:05:58 · 5 answers · asked by jlanlu 1

2006-10-03 10:05:14 · 4 answers · asked by Anonymous

2006-10-03 10:03:10 · 8 answers · asked by Anonymous

9+8+7+6+5+4+3+2+1=45=,987654321....(1)
1+2+3+4+5+6+7+8+9=45=123456789.....(2)
deduct (2)from(1) =864197532
add 8+6+4+1+9+7+5+3+2 = 45
therefore 45-45=45!!!!(from Indian mathematician Sakuntala devi)

2006-10-03 10:02:23 · 12 answers · asked by satish ,the great 2

What is the limit of

lim(x approaches negative infinity) tan(inverse) x ?

the limit exists, i just dont know what it is

2006-10-03 09:53:54 · 1 answers · asked by sur2124 4

How do you work the linear method out in this type of problem? I know how you work it out in a system of 2 problems, but I'm not sure about 3 equations.

2006-10-03 09:51:57 · 6 answers · asked by Anonymous

2006-10-03 09:45:08 · 1 answers · asked by lauren d 1

I haven't looked at what he's doing yet but he tells me he is working on matrix and inversions......Can anyone give me a quick refresher on this? He's a senior in high school.
Thanks!

2006-10-03 09:44:37 · 7 answers · asked by kelley1031 2

My brain is getting all twisted from trying to simplify algebra. I'll use a simple example:

4(3x-2)4*2

I understand that the distributive property has to be used here. We are taught to work from left to right by starting with parenthesis, exponents, multiplication, division, addition, and finally subtraction. Since doing the distributive property requires multiplication, shouldn't I be starting off with 4*3x and 4*-2? I know that's wrong, but I keep thinking it's the right way to go. Does anyone have any good tips that help in simplifying or some good rules that can stop me from making mistakes?

2006-10-03 09:36:37 · 4 answers · asked by Anonymous

Here is the question and the problem: Write the prime factorization of each number. Then write it using exponents
36=____________________________=_____________
Please help first one to help me get a problem right hets best answer the question goes for all of them that are on this answer question 40=________________=__________
90=_________________=________
PLEASE HELP

2006-10-03 09:29:49 · 7 answers · asked by Kally 1

Again, the problem is [A/(s^2+1)] + [B/(s+1)] + [C/(s-1)] = 4
And I need to solve for A,B, &C
I know how to solve for B and C, but I can't get the answer to A.

2006-10-03 09:25:03 · 4 answers · asked by Anonymous

2006-10-03 09:24:20 · 1 answers · asked by Anonymous

The measurements of the room is 9 1/2 FT x 5 FT. How do i figure the sqare footage?

2006-10-03 09:22:12 · 11 answers · asked by Kayla L 1

is 1 a prime or composite number?????is 1 a squar number?

2006-10-03 09:20:41 · 6 answers · asked by Anonymous

Hi guys, I beg u to help me with this:

Currently I have 2 models
y1 = a1*x1 + b1*z1 + c1
y2 = a2*x2 + b2*z2 + c2

y1 is taken from 18 data samples.
y2 is taken from 72 data samples.

I want to perform null hypthesis as a1 = a2, b1=b2, c1=c2.
My goal is to show that first model is different than second model.

Do u know some links or books that can be useful to me?
or maybe u can help me to figure out what I should do.....
Thanks so much.... I'm so desperate with this...

2006-10-03 09:18:38 · 2 answers · asked by Anonymous

2006-10-03 09:15:33 · 5 answers · asked by Jia 1

Heres another one. I know how to derive when y=f(x) but im struggling with this one. thanks.

2006-10-03 09:13:44 · 3 answers · asked by jason6x6x6 3

Im soo close to figuring it out, i got my notepad filled with math but im still not getting it. If you don't know then give me some useful links which can help me. THANKS!

2006-10-03 09:07:05 · 2 answers · asked by jason6x6x6 3

2006-10-03 09:00:56 · 11 answers · asked by littyfamily 1

2006-10-03 09:00:06 · 9 answers · asked by Dan 4

I have an equation: x/a + y/b = 1. I got the (wrong) answer of x/a + y = b. What did I do wrong and what do I have to do to get the right answer?

2006-10-03 08:59:42 · 3 answers · asked by vinskid2005 2

Find Maclaurin Series of function f(x) = (1-cosx)/x^2 . And with using this serie find the x=1.2 value of the function with 5 term far from serie and 4 term far from comma ( I mean 0.1254 like this).

2006-10-03 08:52:13 · 3 answers · asked by nikeless2008 1

if i have the equation -x^2-12x-4

then when it is in completed sq format is it...

-(x+6)^2...
or
-(x-6)^2....

???

2006-10-03 08:48:31 · 5 answers · asked by 0425x 2

The word "second" refers to the ordinal number two: second-rate, second-string, second period, second child, etc. Why was the word "second" used to name the smallest standard unit of time????

2006-10-03 08:44:51 · 7 answers · asked by matpatstery 1

is
ABCD
-BCDA
------------------
1512
------------------

a)1
b)2
c)6
d)7

2006-10-03 08:42:35 · 2 answers · asked by Santha s 1

is
ABCD
-BCDA
------------------
1512
------------------

2006-10-03 08:30:39 · 3 answers · asked by Santha s 1

the given number .The sum of the digits of the number is
a)23
b)18
c)17
d)16

2006-10-03 08:27:40 · 3 answers · asked by Santha s 1

if i have a 1/3 (33.33%) chance of being correct and a 2/5 (40%) chance of being correct how do you calculate what my actual chance of being correct is?

2006-10-03 08:11:29 · 6 answers · asked by Jewish Girl891 2

i thought people were enough smart for math, but they are not. i am just shock. But i just taught with students how to solve to math problems and they got it. that is weird. for example, some people do not like math. that does not make sense.

2006-10-03 08:02:27 · 13 answers · asked by icecreamboy03 2

Let p and q be prime number greater than 3. Prove that 24|p^2-q^2 If you have any idea how to solve this please help me thanks

2006-10-03 08:01:01 · 6 answers · asked by Anonymous