Mathematics - 2 October 2007

1. find the volume of the solid obtained when the areabonded by the x axis and y= -x^2+4x-3 is rotated about the line y= -1.

plz show me how to do it, cuz i really want to learn it

2007-10-02 07:18:51 · 3 answers · asked by English Wiz 4

the sequence is 10, 6, 2, -2, -6

I'm an A* target trade (level 8 in recent SATS) maths, but I can't think, this is for my cousin in year 7's homework.

2007-10-02 07:18:24 · 6 answers · asked by GeeMail 4

Use the equations and relations given below to answer the following questions.
f(pi/6) = 4 f ' (pi/6) = -6
g(x) = f(x) sin(x) h(x) = (cos(x))/(f(x))

(a) g'(pi/6) =

(b) h'(pi/6) =

2007-10-02 07:18:21 · 1 answers · asked by ineedhelpbadly 2

A box of books weighing 300 N is shoved across the floor of an apartment by a force of 410 N exerted downward at an angle of 35.6° below the horizontal. If the coefficient of kinetic friction between box and floor is 0.57, how long does it take to move the box 3.90 m, starting from rest?

2007-10-02 07:14:44 · 2 answers · asked by dazedandconfused 2

given that f(pi/2)=2 and f(3pi/2)=-8. find the values of a and b.

2007-10-02 07:14:07 · 2 answers · asked by George 3

Differentiate the following function.
f (x) = 5 cos x + 4/5 tan x
f ' (x) =

Differentiate the following function.
g (t) = 8 sec t + 9 cot t
g ' (t) =

Differentiate the following function.
y = (sin x)/ (x^6)
y ' =

2007-10-02 07:13:29 · 3 answers · asked by Anonymous

Find the limit for the given function.
lim_(x -> 0) (sin 2 x)/ x

Find the limit for the given function.
lim_(x->0) (sin(5 x))/(sin(6 x))

Find the limit for the given function.
lim_(t->0) (sin)^2(5 t))/t^2

2007-10-02 07:09:23 · 2 answers · asked by Anonymous

2007-10-02 07:07:17 · 6 answers · asked by Anonymous

2007-10-02 07:03:04 · 2 answers · asked by Anonymous

american size 3 in english sizes (clothes i mean)

2007-10-02 07:00:45 · 1 answers · asked by halo 2

2007-10-02 06:53:09 · 5 answers · asked by leah a 1

1. [(p'=>q)^p]=>q' = (p^q)'

2. (p<=>q)' = (p'<=>q)

Note: p^ doesn't mean p.p

2007-10-02 06:50:21 · 2 answers · asked by Irmak 7

The Answer is 6-X^2. But I cannot find it for the life of me. Help?

2007-10-02 06:42:41 · 2 answers · asked by Master_Of_Socks 2

2007-10-02 06:28:33 · 11 answers · asked by Anonymous

2007-10-02 06:16:50 · 13 answers · asked by dj 1

2007-10-02 06:10:12 · 11 answers · asked by Anonymous

2007-10-02 06:07:43 · 6 answers · asked by dj 1

im in 11th grade and still doing 9th grade math and i wont be able to graduate next year if i dont get 100% on this test,
so help?

2007-10-02 05:51:56 · 8 answers · asked by Emily 2

tangent line...
f(x+h) -f(x)/h
as the lim of h goes "0"

2007-10-02 05:43:33 · 2 answers · asked by Anonymous

2007-10-02 05:42:41 · 8 answers · asked by bayleycs 1

please i need help i suck so bad at math and if i dont get this answer right my teacher is going to put me in homeschooling!!! i need helpppppp

2007-10-02 05:41:07 · 2 answers · asked by Emily 2

f(x)=2x sqrt of (X^2 +3)

2007-10-02 05:04:15 · 10 answers · asked by mrkittypong 5

let f(x)=Ax + (B/x^2) where A and B are constants. Find values for A and B so that the line y=2x+1 is tangent to y=f(x) when x=-1.

I have no idea how to do this./

i keep getting different answers and different ideas how to do this...none of the answers work out to be tangent and the problem is really getting annoying...please help!

whatever i get the graph is not a tangent

2007-10-02 05:00:53 · 3 answers · asked by Mr. Vill 1

Romeo and Juliet saw each other when they were 270 feet apart. Romeo began running toward Juliet at a rate of 16ft/sec. At the same moment, Juliet began running toward Romeo at the rate of 14ft/sec.

How many secods after they started running will they meet?

How far will Romeo have run then?

Thank you!!!!!!

2007-10-02 04:52:42 · 6 answers · asked by jayjay 2

one is
solve the following equation to find x in terms of a and b, assuming that a can not equal b.
i know the answer to this is x = -a-b but how do you get to that.
the other is
x in terms of y and t, assuming that y+3t can not equal 0.
i have attempted this one and worked it out to be x= 3t - y. but am still not sure how to solve them.
if you could explain very simply and clearly to me how you solve these that would be great as i am having problems understanding what to do.
thank you for any help you can give.

2007-10-02 04:46:36 · 4 answers · asked by Anonymous

The quadratic function (f) is defined by f(x) = x^2 + 8x +13

1)express f(x) in the form (x+p)^2 +q where p and q are integers

2)what is the least value for f(x) and the value of x for which this least value occurs

3)find an expression for f(x-3) in the form ax^2 +bx+c, where a,b and c are integers

2007-10-02 04:28:09 · 1 answers · asked by Anonymous

2007-10-02 04:27:23 · 2 answers · asked by Anonymous

2007-10-02 04:26:18 · 3 answers · asked by Anonymous

2007-10-02 04:25:12 · 2 answers · asked by Anonymous

{Int from 0 to infinity} lnx/(x^(1/2)) dx

{Int from 1 to infinity} x^3/(x^(5)+2) dx (using the comparison test)

how can this problem be solved?

thanks.

2007-10-02 04:05:20 · 2 answers · asked by Anonymous