Mathematics - 17 December 2007

4x^2 – 36y^2

3x^2 – 2x – 8

24x^2 + 10x – 4

2007-12-17 16:00:19 · 6 answers · asked by Abena 2

A)
the function F is defined for all x and y by F(x,y)=xe^y-3+xy^2-2y. show the point (1,3) lies onthe level curve F(x,y)=4 and find the equation for the tangent line to the curve at the point (1,3).
B)
the NerloveRingstad production function y=y(K,L) is defined implicitly by y^1+elny=AK^mL^n, where A,m,n are positive constants. Find the marginal productivities of y w.r.t. K and L- that is, find dy/dK and dy/dL.
(take the logarith of each side and then differentiate implicitly)

2007-12-17 15:50:12 · 1 answers · asked by Anonymous

-x^0-x^2(x^0)^-3+4

x=-2
y=64

2007-12-17 15:33:35 · 2 answers · asked by Travis A 2

How to take 1st AND 2nd derivative of y=cos2x? Meaning take the 1st derivative and then take the derivative of that.

And also

the square root of x^2+1

and

(3s+5)^8

Please explain how to do it!! not just the answers.

2007-12-17 15:30:13 · 4 answers · asked by jyj 2

In my Algebra 2/ Trig.class we were trying to figure out why when i= -1 i squared also equals -1. Please help!!!

2007-12-17 15:30:10 · 8 answers · asked by isiticedtea 3

(3x^-2/y^-3)^-2 (x^4/y^6)^2

2007-12-17 15:18:56 · 2 answers · asked by Travis A 2

(-3x - 4)/-16 * 4x/(-x - 2)

2007-12-17 15:15:08 · 12 answers · asked by Anonymous

2007-12-17 15:13:23 · 3 answers · asked by Teresa M 1

I feel silly but I don't know how to figure it out. Like when one grade is worth 10% of your grade and one grade is worth 20% and so on and so on, how do you figure out your final grade? And don't worry it is not a grade for a math class!!!!

2007-12-17 15:07:41 · 3 answers · asked by anon 2

2007-12-17 15:02:59 · 9 answers · asked by bazomp 1

sqrt 2y+7 +4=y

2007-12-17 15:02:45 · 4 answers · asked by God Bless America!~ 4

im susposed to find a polynomial function with interger coeficientsthat has the given zeros how would i do that with (6,-5+2i,and -5-2i)

2007-12-17 14:59:05 · 2 answers · asked by Anonymous

Mean Life of Radioactive Nuclei, Physicists using the radioactive decay equation y=ae^(-kt) call teh number 1/k the mean life of a radioactive nuclues. The mean life of a radon-222 nucleus is about 1/0.18 = 5.6 days. The mean life of a carbon-14 nuclues is more than 8000 years. Show that 95% of the radioactive nuclei originally present in any sample will disintegrate within three mean lifetimes, that is, by time t = 3/k. Thus, the mean life of a nuclues gives a quick way to estimate how long the radioactive of a sample will last.

2007-12-17 14:54:33 · 1 answers · asked by Anonymous

Find the volume of the larger shape

Surface Area= 18 inches squared
Surface Area = 98 inches squared
Volume = 353 inches cubed
Volume = x

2007-12-17 14:52:16 · 7 answers · asked by Anonymous

x/(x+y)/x

~This reads x divided by the fraction (x+y)/x

2007-12-17 14:52:02 · 2 answers · asked by Travis A 2

2007-12-17 14:50:53 · 2 answers · asked by Anonymous

Let f:X → Y be a function. Then for any A⊂Y, f^-1 (Y\A)=X\ f^-1(A).

2007-12-17 14:37:14 · 1 answers · asked by Anonymous

2007-12-17 14:35:49 · 1 answers · asked by FireRedLove 2

What's the answer? &
Would you multiply them by tenths or one hundredths???

2007-12-17 14:25:42 · 6 answers · asked by Anonymous

(x^2 - 2x + 1)/(5x^2 - 20x + 15)

2007-12-17 14:25:37 · 8 answers · asked by Anonymous

Sinx-Sin^2 / cos^2x
I have no idea.
Can someone show me how to work it out?

2007-12-17 14:14:49 · 2 answers · asked by adlihdz 2

Between Karnak and Edfu, the Pharaoh kept 1020 white goats. If these goats represented 17%of the total flock, how many goats did the Pharaoh have?

2007-12-17 14:13:42 · 4 answers · asked by Travis A 2

2007-12-17 14:11:22 · 4 answers · asked by Sam J 1

a) no solution
b) 3,-5
c) 3,-3,5,-5
d) 3,-3



explain how to do it .

2007-12-17 14:10:51 · 7 answers · asked by Anonymous

a) x+4
b) x+3
c) x-5
d)4x+3

explain . show how to get the answer please?

2007-12-17 14:09:13 · 2 answers · asked by Anonymous

by print i mean the dimensions of the print left on the earth.

2007-12-17 13:45:33 · 2 answers · asked by Anonymous

Ok I'm not one of those lazy people who post they homework online and hope for the best. I'm using this as my last resort. I have been working on this for 1:30, and I have a test on it tomorrow. I have already done 30 other problems and I can't find the answer to these.

Find all solutions [0,2pi)

2(sin^2)2x + 5sin2x - 3 = 0

(2 (tan^2)x - 1)((tan^2)x +1) = 0

2 (sin^2)2x + 5 sin(2x) - 3 = 0

Verify:

[cot^2 x - tan^2 x)]/[(cot x + tan x)^2] = 2(cos^2) x - 1

2007-12-17 13:42:48 · 1 answers · asked by spector_17 1

on the first formula? Thinking along the lines of abs [-x] < 0 or something similar.

2007-12-17 13:40:35 · 2 answers · asked by Anonymous

2007-12-17 13:33:17 · 5 answers · asked by virgo b 1

ƒ(x) = A sin (π/2 x) + B ; where A=2 ; B=1
solve the equation ƒ(x) = 2 for 0 ≤ x ≤ 5

2007-12-17 13:08:41 · 3 answers · asked by t S a 1