Mathematics - 24 July 2007

I do not even know where to begin, can someone help me?

2007-07-24 06:29:30 · 5 answers · asked by spiritmoonshine 1

∫ ^2 to 1 [x^2(x^3+3)^3]

okay the first step is to find u and du and they are

u=x^3+3
du=3x^2

then find the new x numbers in the integrand so...
(1)^3+3=4
(2)^3+3=11

∫ ^11 to 4 [u^3(1/3du)]

so now am confused what do I do next

2007-07-24 06:27:56 · 5 answers · asked by clawedstar 1

2007-07-24 06:17:31 · 2 answers · asked by Anonymous

2007-07-24 06:12:10 · 2 answers · asked by Martinez 1

how long will it take for my bullet to hit the target?

2007-07-24 05:40:33 · 7 answers · asked by cr@ZY_$3XY_c00l 2

I have done this question about 15 times and i dont seem to be getting the right answer. So please tell me what to do.

What is the volume of a right cylinder with radius 5 cm and height 6 cm?

everytime i do it i get 471. but thats not one of the options.

L. 16 / 3
M. 27
N. 12
O. 64
P. 45
Q. 24
R. 54
S. 5 sqrt(3) / 3
T. 72 sqrt(5) / 3
U. 36
V. 108
W. 15
X. 16
Y. 150
Z. 32 / 3

2007-07-24 05:03:04 · 8 answers · asked by ChellBaby 1

Given points A(4, 3), B(4, -2), C(-4, -1), D(-1, 4). Determine whether quadrilateral ABCD with the given vertices is a parallelogram or not. You must provide work to prove your answer.

2007-07-24 04:46:24 · 7 answers · asked by Anonymous

Mark puts a fence around his rectangular garden. how many feet of fencing does he need if the length of the garden is 16 fet and the width is 17 feet?

2007-07-24 04:41:25 · 9 answers · asked by ariel c 1

If so please factor them.

x^4 - 3x^2 - 2x + 4

x^3 -2x^2 - x +2

2007-07-24 04:28:10 · 4 answers · asked by Anonymous

Sorta hard to ask that in the title. This is one of those problems which just wont go away. It annoys me, and i need an answer.

The problem in more detail is as follows:
There are three circles of radius 1, 2, 3
They are all touching each other, in such a way they leave an area between them
Within this area, draw the largest possible circle. What is the radius of this circle
Its actually an easy question using trig, the catch is there are no calculators allowed.

I came across this problem in a math competition i sat a year back or so, it was the last question so expect it to be hard.

This is what ive worked out, if youd rather try solve it for yourself then i guess dont read this.

At the point were the circles meet, the slope of the tangents are equal on both circles. Therefore you can connect two radii of two circles and pass through the touching point, making a 3 4 5 triangle.

With Pythagorean triples, the radius of the circle inscribed inside the triangle is given by
r=(a+b-c)

2007-07-24 04:23:57 · 4 answers · asked by priestincamo 2

Write an equation in slope-intercept form of a line with the following characterisitcs; perpendicular to the graph of:
2x - 3y = 12 and passes through (4,3).

2007-07-24 04:16:40 · 6 answers · asked by Amber B 1

If money is worth 5% compounded semi-annually, find the present value of a sequence of 12 semi-annually of $500 each, the first is the due at the end of 4.5 years.
please show me the formula and solution to this problem...

2007-07-24 04:09:28 · 2 answers · asked by Dariel J 2

I will put this with each of my questions today, I am out of school, I am trying to re-teach myself algebra which is a little difficult when you haven't done it in some time, so as I work through a problem I use yahoo answers to check it to see if I did it correctly. thank you for all your help :)


Write an equation in slope-intercept form of a line with the following characteristics: parallel to the graph of:
-4x + 3y = 12 and passes through the orgin.

2007-07-24 04:06:22 · 3 answers · asked by Amber B 1

5 feet 4 inches:
Is is 5"4' or 5'4"

2007-07-24 04:04:21 · 15 answers · asked by ND 1

I will put this with each of my questions today, I am out of school, I am trying to re-teach myself algebra which is a little difficult when you haven't done it in some time, so as I work through a problem I use yahoo answers to check it to see if I did it correctly. thank you for all your help :)

Write an equation in slope- intercept form of a line with the following characteristics. Perpendicular to the graph of:
y = 3/2x - 3 with a y-intercept of 5.

2007-07-24 04:02:58 · 3 answers · asked by Amber B 1

Ms. Finch paid a 10% downpayment of $200,000 for a house and lot and agreed to pay the balance on monthly installments for 5 years at an interest rate of 15% compounded monthly. What is the monthly installment in in dollars? can you please give me the formula and solution to this problem...what is the formula used here?

2007-07-24 03:59:51 · 4 answers · asked by Dariel J 2

I will put this with each of my questions today, I am out of school, I am trying to re-teach myself algebra which is a little difficult when you haven't done it in some time, so as I work through a problem I use yahoo answers to check it to see if I did it correctly. thank you for all your help :)

Determine the y-intercept of the graph: -3x-5y =15

2007-07-24 03:59:13 · 5 answers · asked by Amber B 1

the question is about a operation we dont know
so for the sake of this we will call it operation $
heres the problem
if a $ b = b/a -1 then the value of (3$4) 4 (1$2) is...

2007-07-24 03:57:19 · 2 answers · asked by Anonymous

the vertex is -16, -2.

I need to know the correct equation and graphing for these vertexes.

2007-07-24 03:56:28 · 1 answers · asked by littlesoutherner12 1

How much money you must invest in order to withdraw $2000 annually for 10 years if the interest rate is 9%? can you please show me the formula and solution to this problem..thanks...

2007-07-24 03:48:47 · 6 answers · asked by Dariel J 2

please help!!

2007-07-24 03:48:33 · 8 answers · asked by ariel c 1

please help!!

2007-07-24 03:44:21 · 7 answers · asked by ariel c 1

A carpenter installs a brand new, perfectly square door. The door hinges are standard, new and undamaged. The mortises in the door and door jamb for the hinges are perfect, so that the hinges are screwed in perfectly flush and exactly in the right places. Using a long level, the carpenter sees that all the door pins are perfectly colinear and vertical. Yet, he sees a tapering gap between the door and the door jamb, and that the door itself is out of plumb, i.e, rotated inside the door jamb opening. How is this possible? This should be a question in "Home and Garden", but this is actually more of a geometry problem. Before the carpenter can fix this problem, he first has to know what's causing the tapered gap, which is responsible for the door being out of plumb. Assume that the door is free swinging with a gap clearance all around the door. Is there a common geometrical explanation for this problem? To say that carpenter just did a sloppy job isn't helping anything.

2007-07-24 03:44:08 · 1 answers · asked by Scythian1950 7

Are the following two graphs in a family? If so, explain why.

y = -2x + 3 and y = 2x + 3

2007-07-24 03:42:42 · 2 answers · asked by Anonymous

Are the following two graphs in a family? If so, explain why.

y = 3x - 2 and y = -2x + 1

2007-07-24 03:37:02 · 4 answers · asked by Anonymous

2007-07-24 03:34:55 · 9 answers · asked by big red 1

Determine the slope and y-intercept of the graph:
-x + 2y = 4

2007-07-24 03:33:17 · 10 answers · asked by Anonymous

2007-07-24 03:31:33 · 10 answers · asked by poor23 1

Determine the slope amd y-intercept of the graph: 3x + y = 8.

2007-07-24 03:30:30 · 4 answers · asked by Anonymous

Determine the y-intercept of the graph: -3x - 5y =15

2007-07-24 03:25:19 · 12 answers · asked by Anonymous