Mathematics - 25 September 2007

2007-09-25 12:29:05 · 3 answers · asked by Anonymous

I have a circular piece of paper. And I cut out a sector and connect the two radial edges together to make an open cone. What should the angle of the sector be in order to maximize the volume of the cone?

2007-09-25 12:26:15 · 3 answers · asked by i'MdAmAnn 2

There are 55 blades of grass in 1 in.^2 of lawn. THere are 230 blades of grass in 4in.^2 of the same lawn. How many blades of grass are in 3 in.^2 of lawn?

2007-09-25 12:25:50 · 1 answers · asked by Marina d 1

2007-09-25 12:24:13 · 4 answers · asked by Anonymous

5j + 7 = 72

2007-09-25 12:23:03 · 1 answers · asked by cutepuppies007 1

2007-09-25 12:06:02 · 5 answers · asked by Anonymous

whys is it dat x to the second power is not a linear equation???

2007-09-25 11:58:58 · 18 answers · asked by Anonymous

2007-09-25 11:53:47 · 11 answers · asked by Anonymous

f(x)=(x-3)(x+2)^3 what is the:
domain
range
derivative(s)
relative max,if any
relative mim, if any
inflection points, if any
concave up
concave down

please help

2007-09-25 11:44:17 · 3 answers · asked by fvsdf s 2

e^x - e^(-x) = 1

uh oh

2007-09-25 11:40:53 · 8 answers · asked by salmonella_jr 3

Ok...theres a farmer. when u ask hom how many chickens and rabbits there are he wont tell u. he just says there are 18 heads and 58 animal feet. how many chickens and how many rabbits are in the yard.

my answer: 8 rabbits and 11 chickens
is that right??
it came out to 58.
plz help and if i did it wrong explain how i should do it plz!!
thank you!!

2007-09-25 11:36:56 · 6 answers · asked by ♥ (: 4

Can someone help me figure these 2 out.
1)x^7+16x^6+113x^5+450x^4+1080x^3+1552x^2+1232x+416

2)x^6-x^5-11x^4+13x^3+26x^2-20x-24

I know how to set these up but if you can tell me the factored answer and what you put in the upper left hand corner box i think i will have it. to figure out what goes in the upper left hand corner box you have to find all the factors of either -24 or 416. i have tried and tried and i just cant get it. PLEASE HELP ME!

2007-09-25 11:34:41 · 2 answers · asked by Anonymous

lim x-27/x^(1/3)-3
x->27


and

lim x^(1/3)-1/x^(1/4)-1
x->1

i tried these and everytime i do it they come out to equal 0/0
which is wrong because our teacher told us it wasnt 0

2007-09-25 11:31:46 · 2 answers · asked by the_hockey_guy1990 1

I just took a test with this question on it and im wondering if i got it right........please answer if u can.........thanks!!!!!!

2007-09-25 11:31:46 · 2 answers · asked by Anonymous

2007-09-25 11:30:39 · 1 answers · asked by Tommy 2

y= (x^3)/(6) + (1/(2x))

{1/2
Calculus

2007-09-25 11:28:18 · 3 answers · asked by Anonymous

What does 5(-13)(-2)=? Please Explain! thanks!!

2007-09-25 11:17:09 · 10 answers · asked by hotpinkkatharyn 1

(6y-10) degrees
and
(6y+10)

one of the lines is just straight (180) degrees
and the other is just slightly slanted towards the left but its connected to the straingt line

\
\
___________\_____________
(6y-10)degree (6y+10)degree



that is a diagram

when you answer my question plz tell me how to with detailed instructions...i dont want to just know the answer i want to know how to get it


THANK YOU VERY MUCH!!!!!!!

2007-09-25 11:15:56 · 1 answers · asked by Anonymous

prove by contraidiciton that log 3 cannot be written in the form (m/n) where m and n are positive integers

2007-09-25 11:11:06 · 3 answers · asked by steve 1

2x-5y+z=5
3x+2y-z=17
4x-3y+2z=17

how would I solve this? Can sumone help me?

2007-09-25 10:59:33 · 2 answers · asked by sunnygirl 4

The hieght of an object h (t) is determined by the formula h(t)=-16t^2+256t, where t is time, in seconds. Will the object reach a maximum or a minimum? Explain or show your reasoning.

2007-09-25 10:58:25 · 1 answers · asked by t92vt 1

please tell me how you do it with details and instructions with every step...i appreaciate it very much thank you!

2007-09-25 10:56:30 · 10 answers · asked by Anonymous

there is an old saying "what goes up, must come down" Does this express a law of nature ? why or why not?

2007-09-25 10:51:39 · 4 answers · asked by hi ! (: 3

1
- x 2
3


(one third times 2)
i need someone to really break it down for me, and really explain as well as they possibly can
thanks=)

2007-09-25 10:31:23 · 9 answers · asked by Anonymous

How would I solve the following using partial fraction reduction to find f(t):

F(S) = s / (s+1)^2

Thanks!

2007-09-25 10:30:17 · 2 answers · asked by Anonymous

express the answer in intervals.
*****intervals as in inf and cup signs*****

2007-09-25 10:22:29 · 1 answers · asked by Phuong w 1

Consider the following subspaces of F^5 (where F is a field):

W1= { (a1, a2, a3, a4, a5) : a1=a2 + a4, a3=a5}, and
W2= { (a1, a2, a3, a4, a5) : a1 = a3 = a4}.
1. Describe the intersection of W1 and W2 and find a basis for this subspace.
2. Use the dimension formula to show that W1 + W2 = F^5
3. Starintg with the basis in (1) for the intersection of W1 and W2, find bases for W1, W2, and use them to find a basis for F^5.
Please give reasons.

2007-09-25 10:21:18 · 3 answers · asked by Fred 1

A lion eats a zebra within 1 hour
A jaguar eats a zebra within 2 hours
A hyena eats a zebra within 6 hours

How long would it take if all three predators nicely ate the same zebra all at once?

I know this sounds stupid, but it's actually part of my math homework and I can't figure it out! Drives me crazy!

Please help me!

2007-09-25 10:18:43 · 4 answers · asked by .:: me ~* 3

--Math question that im stuck on,,, any answers

2007-09-25 10:11:31 · 5 answers · asked by Anonymous

A.) g(x) = x-5

B.) h(x) =
{3 if -1 < or equal to x < or equal to 1
{4 if 1 < x < or equal to 4
{x if x > 4

2007-09-25 10:08:39 · 1 answers · asked by blessed 1