Mathematics - 3 September 2006

3 times, is that right

2006-09-03 10:10:40 · 5 answers · asked by Olivia 4

K, im really stuck this time

A function is defined by f(x) = {2x - 3}

Evaluate f(1)

2006-09-03 10:00:41 · 2 answers · asked by Anonymous

The diameter of the Milky Way disc is approximately
9 x 10^20 meters. How long does it take light, traveling at 10^16 m/yearto travel across the diameter of the Milky Way?

2006-09-03 09:56:24 · 7 answers · asked by superhomer1221 2

* indicates multiplication


possible answers...

1

x

1/x

-x

or none of these

What did you come up with?

2006-09-03 09:51:47 · 4 answers · asked by Doug 2

lim ___x + 2___
x=>2 sin (x + 2)


has the value ..... ?



.
I got 1/2 , is it right

2006-09-03 09:18:08 · 6 answers · asked by Doug 2

Let f(x) = a sub n x^n + a sub n-1 x^n-1 +...+ a sub 2 x^2 + a sub 1 x + a sub 0

and

g(x) = b sub k x^k + b sub k-1 x ^k-1 + ... + b sub 2 x^2 + b sub 1 x + b sub 0 .

sub=subscript

n and k are whole numbers. All of the coefficients are real and the lead coefficients (the coefficients of the highest powers) are positive.

Then if n > k, lim f(x)/g(x) =
.... x=>oo

I have to chose from

... a sub n / b sub k
... a sub 0 / b sub 0
... oo
... 0

or is it none of these

2006-09-03 09:08:59 · 5 answers · asked by Olivia 4

Checking my work on my statistics stuff...

You're an insurance agent, selling insurance: $1000 policies against occurence B. B happens to 2% of the people owning the policy, historically. There's a $20 administrative fee for each policy sold.

How much does each policy have to cost to make a $100 profit on each?

Here's basically what I did:
P=profit, n=number of policies, p=price per policy, P/n=profit per policy

P=np-20n-(1000n*.02)
P=np-40n
P/n=p-40
100=p-40
p=140

Is that about right?

2006-09-03 08:47:08 · 6 answers · asked by Anonymous 3

lim .... (x^2 - 4)/(x^3 - 8)
x=>2

2006-09-03 08:45:28 · 5 answers · asked by chris 2

For all values for which the expressions are defined, sin x - cos x and

_____1_____ are equivalent expressions.
sin x + cos x

2006-09-03 08:37:03 · 5 answers · asked by Doug 2

I'm in College Algebra, and sometimes get stuck (math is not my strong suit). Please let me know if you have run into anything good. Thank you!

2006-09-03 08:31:34 · 3 answers · asked by ♥austingirl♥ 6

Points are: (7^1/2, 3 3^1/2), (-7^1/2, -3^1/2)

Please explain as thouroughly as possible, I'm stuck on this problem and the tutor is closed Monday b/c of Labor Day. Thanks again!

2006-09-03 08:20:14 · 2 answers · asked by ♥austingirl♥ 6

I'm stuck on this one Algebra problem in my homework, and I can't ask anyone about it, b/c there are like 8 "square roots" in it, please help!!

Thanks so much!

2006-09-03 08:09:59 · 7 answers · asked by ♥austingirl♥ 6

f(x)=e^2x-13e^x+36

2006-09-03 08:03:24 · 3 answers · asked by Th_hT 1

the chessboard is of P x Q dimensions.rook travels only vertically or horizontally.only one move at a time is allowed and the direction can be in the north or east side.i want all the total possible no. of ways.

2006-09-03 07:40:34 · 7 answers · asked by ? 4

2006-09-03 07:36:16 · 2 answers · asked by ktroutsh5 2

I just started AP Calculus BC this year and it really bugs me when i am given rules with no explaination. So yesterday i figured out proofs for many rules like the Power rule for finding derivatives. So i was thinking this morning and i had used my answer for the derivative of y=lnx and y= e^x in eachother. To find the derivative of e^x i assumed the derivative of lnx was 1/x and to find the dirivative of lnx i assumed the derivative of e^x was itself. which i didnt like very much because its kind of like an endless loop of assumptions. So, i saw that you could find the derivative of e^x using the simple definition of a derivative. but that required the assumption that the limit of (e^x-1)/x as x approaches zero is one, but i could not proof this assumption algabraicly only by graphing. So if someone could please show me how to prove this, or simply show me another way to prove my two original derivatives without using the answers for eachother in both of them. you can use the answer

2006-09-03 07:35:31 · 4 answers · asked by Anonymous

2006-09-03 07:19:03 · 3 answers · asked by Anonymous

2006-09-03 07:11:21 · 14 answers · asked by cello_drama 2

what is .60 = to is it 6%

2006-09-03 07:06:08 · 29 answers · asked by Anonymous

2x^4-x^2-6x+14=0

2006-09-03 07:02:45 · 7 answers · asked by Th_hT 1

2006-09-03 06:59:17 · 11 answers · asked by cello_drama 2

2006-09-03 06:47:10 · 7 answers · asked by sethivijaykumar 1

I need it for a math project

2006-09-03 05:58:20 · 5 answers · asked by janegirl921 1

show work

2006-09-03 05:50:06 · 5 answers · asked by Anonymous

2006-09-03 05:36:47 · 5 answers · asked by rmcclure498 2

Wat are the prime numbers between:

1.70-90
2.60-100
3.100-150

2006-09-03 05:19:39 · 5 answers · asked by omgGUESSwho? 2

Is there any rigid mathematical proof that 0.999... = 1? Can you show me a website that proves this definitively?

Looking at the past questions and answers, I see arguments for both sides; some more convincing than others; some unsound and some plain wrong.

2006-09-03 05:08:07 · 15 answers · asked by Marianne M 1

What is the difference between Statistics and Parameter, is one more important than the other? Do they change?

2006-09-03 04:58:47 · 4 answers · asked by mrkittypong 5

2006-09-03 04:50:46 · 14 answers · asked by Andz 1

how many digits out if any if Pi(3.14) will the digits begin to repeat itself

2006-09-03 04:41:12 · 9 answers · asked by johnbirchwood 1