Mathematics - 11 October 2007

Ok, so this is very stupid. Please tell me how to do it.

Lim as n->infinity of a_n= ( 1/ ( e^(4n) +n^2) )^ (1/n)

Apparently the answer is not 0, 1/e, or 1. Go figure.

2007-10-11 17:19:47 · 2 answers · asked by Anonymous

2007-10-11 17:13:21 · 2 answers · asked by ! 2

dealing with calculus

2007-10-11 17:02:55 · 3 answers · asked by buttacup1984 1

2007-10-11 16:51:10 · 3 answers · asked by julia k 1

I wasn't able to solve this problem on my test today, but it's driving me crazy... so I was hoping that someone could help me.

I don't have a way to write out some symbols so I'll use "=" for "if & only if" & ">" for "if & only if".

Premise:
(L=Q)>L
Conclude:
LvQ

I've tried both forms of exportation on the premise, along with using implications, etc. Any suggestions?

2007-10-11 16:49:39 · 1 answers · asked by erinhenr918 1

I received a challenge question from my math teacher...and I think i have the right answer but I'm not sure.
Here's a link to the picture:
http://smg.photobucket.com/albums/v321/sugaswt17/?action=view¤t=math.jpg

We got a hint that on the side of 8, we can make a third variable, z like this:
http://smg.photobucket.com/albums/v321/sugaswt17/?action=view¤t=mathii.jpg

Find the area of the rectangle as a function of its length. I used y and got A=y*((8z-z²)/(√z²-y²)).

Not sure if this is right at all =( Any help would be greatly appreciated.

2007-10-11 16:44:38 · 3 answers · asked by ♥♥♥♥♥ 5

pre cal prob

2007-10-11 16:42:49 · 2 answers · asked by icygurl555 1

2007-10-11 16:39:57 · 11 answers · asked by Katie 2

im not sure.
help?!

2007-10-11 16:38:06 · 2 answers · asked by redjet 2

2007-10-11 16:25:36 · 14 answers · asked by Annquins 1

FIND THE ERROR!!! THIS IS HARD!!

000
111
222
333
444
555
666
777
888
999

Did you know that 80% of UCSD students
could not find the error above? Re post
this with the title "find the error, its impossible"
and when you click "Submit Post", the
answer will be really obvious.





this was on a bulleting, but was it really an error or not?

2007-10-11 16:22:06 · 13 answers · asked by Anonymous

2007-10-11 16:21:32 · 12 answers · asked by Annquins 1

2007-10-11 16:14:52 · 6 answers · asked by Annquins 1

please help

2007-10-11 16:13:19 · 3 answers · asked by icygurl555 1

7/9-(-13/18)

2007-10-11 16:07:18 · 5 answers · asked by Anonymous

What is the answer to this question? What is 5 to the power of 123?Try to answer this.

2007-10-11 15:50:54 · 5 answers · asked by Joseph D. 1

where is the median from the following set of numbers.
463,582,401,533,457,514,438 ?

2007-10-11 15:45:19 · 8 answers · asked by Brittandbaby 2

A swimming pool is 12 meters long, 6 meters wide, 1 meter deep at the shallow end, and 3 meters deep at the deep end. Water is being pumped into the pool at 1/4 cubic meter per minute, and there is 1 meter of water at the deep end.

(a) What percent of the pool is filled?
(b) At what rate is the water rate rising?

2007-10-11 15:30:44 · 2 answers · asked by bosox08 4

Two circles (x + 4)^2 + (y - 7)^2 = 2 and (x - 3)^2 = 2 have common tangents. Find the equation of the common external tangent that has the largest y-intercept. Give your answer in the form y = mx + b.

2007-10-11 15:27:01 · 2 answers · asked by Anonymous

Physicist Phil was driving aroud a flat curve at 9.1m/sec. Being a physicist, he knew that if he went around the curve at the maximum speed which would allow him to stay on the road, then the static force (F (little a)) would equal the centripital force (F (little c)). If (F (little a)) = 5.209m m/sec^2, (F (little c)) = mv^2/r m/sec^2, Phil's car has a mass, m, of 800 kg, the radius, r, of the curve is 75m, and v is the speed of the car in m/sec, how much faster, in m/sec, could Phil go and still stay on the road? Give your answer rounded to four significant digits.

2007-10-11 15:15:19 · 1 answers · asked by JewJitsu 2

triangle PQR is similar to triangle PST. Given point P at (0,0), Q at (1,2), R at (2,2), and S at (2,4). Find 2 possible locations at T in exact answers. i know that one point is at (4,4). how do you find the other one in fraction form, without calculator.

I know it is not (2,6)
i think it is a fraction.

2007-10-11 15:15:04 · 7 answers · asked by worthlessstuff 1

Evaluate:
6n for n=8
k over 20, for k = 140
50x, for x = 8

2007-10-11 15:12:47 · 24 answers · asked by **Silvia** 3

Math problems System of linear equation in two variables

2x-5y=3
-4x+10y=3

2007-10-11 15:11:56 · 3 answers · asked by ydfarm 2

Ok so i have to make a icosahedron (a 20 sided polygon) tonight, and i need the triangles to be 6 inches on each side (equilateral triangles).
i know HOW to make the triangle..once i have the circle. I just don't know how big to make the circle!!
SO my question:
How can I figure out the radius of the circle using only a triangle of 6 inches on each side? or, What would the radius of the circle be?! (THAT would be the mooost helpful answer)

2007-10-11 15:10:03 · 3 answers · asked by Anonymous

Billy inserted a tape into his video cassette recorder, then he hit one then another of the five buttons on the VCR (at random). The five buttons are Rewind, Stop, Play, Pause, FastForward. What is the probability that the Play button was pressed second? Give you answer as a reduced fraction.

2007-10-11 15:09:36 · 4 answers · asked by Anonymous

Find the equation(s) of all lines which are asymptotes of y = ((3x^2) + 6x + 12)/ x - 2. Give your answer(s) in either the form y = mx + b or x = c, where m,b,c are real.

2007-10-11 15:07:19 · 1 answers · asked by Anonymous

Find A + B if ((n^3)+1)/((n^2)+2n = n - 2 + (A/n) + (B/n + 2).

2007-10-11 15:05:01 · 1 answers · asked by Anonymous

Let a,b,x,y be positive real numbers such that (a^3)/b,x,y,(b^3)/a, are four consecutive terms of a geometric sequence. Find the ordered pair (x,y). Express your answer using positive rational exponents.

2007-10-11 15:03:24 · 2 answers · asked by Anonymous

Heres the problem:
Ms. Sidher invests a total $18,000 into two accounts bearing simple interest; one account bears 5% and the other bears 8%. If she earns $1,260 interst for the year, how much did she invest in the account thats earns 8%?

I have to use the "tic tac toe" method if you know what that is.

Please show me how you did it to please!

2007-10-11 14:57:24 · 4 answers · asked by Anonymous

Round your answer to the nearest tenth.

2007-10-11 14:41:13 · 3 answers · asked by orange 2