Mathematics - 5 December 2007

Consider the region in the plane enclosed by y = x^2 and y=x. We rotate this region about the line y=0. Find the volume of the resulting solid of revolution

2007-12-05 07:40:02 · 1 answers · asked by Anonymous

2007-12-05 07:37:58 · 14 answers · asked by Negra 2

2-3[-4+6]÷ (-2)

I don't understand how to simplify and I really need some help with this. Any explanations as to the order of operations and what to do to actually simplify, and what simplifying really is would be a great help. I just started an Algebra class, and I feel so lost!

2007-12-05 07:37:02 · 5 answers · asked by Alize 2

what role do angle bisectors of a spherical triangle play in their polar triangle?

is the incenter of a triangle also the incenter of its polar triangle?

2007-12-05 07:21:06 · 2 answers · asked by Anonymous

Express log4 3 and log16 3 as logarithms to the base 2. Hence find n if log2n = 2log4 3 + 8log16 3 show all working out.

2007-12-05 06:41:58 · 3 answers · asked by Liverpool1 1

The tortoise and the hare decide to race again. How do you want the race to turn out? Should slow and steady win the race? Maybe this time the hare will win, or the race will end in a tie. Create a problem based on the tortoise and the hare that you can solve by using a system of linear equations. Explain how to solve your problem by using a system of linear equations. Explain why you chose your winner; Please explain step by step and show the example

2007-12-05 06:31:40 · 1 answers · asked by Triston K 1

2007-12-05 06:30:18 · 8 answers · asked by Anonymous

2007-12-05 06:29:45 · 3 answers · asked by Alexander 6

Consider the function f(x) = 9/x^3 - (6/ x^(5) ).
Let F(x) be the antiderivative of f(x) with F(1) = 0.

2007-12-05 06:12:41 · 3 answers · asked by Mark K 1

Don't tell me how to solve the problem, just the answer.

2007-12-05 05:55:29 · 11 answers · asked by Anonymous

I have a list of DOBs in one column.
eg
30/11/1939
28/10/1943
11/12/1943
14/06/1945
19/09/1946
... etc

And there is a name column next to it. I need to use a formula to calculate each persons age, then I need to list all ages and the number of them.

If you need me to try and explain it differently just ask.

2007-12-05 05:48:23 · 5 answers · asked by Sid 1

A company must manufacture a closed rectangular box with a square base. The volume must be 1040 cubic inches. The top and the bottom squares are made of a material that costs 7 dollars per square inch. The vertical sides are made of a different material that costs 6 dollars per sqare inch.
What is the minimal cost of a box of this type?

2007-12-05 05:46:45 · 1 answers · asked by TeddyGrahams 1

Calculus
Inequality

2007-12-05 05:45:45 · 8 answers · asked by Token G 1

Half of water from first glass was poured into the second.
Then, half of water from second glass was poured into the first.

This sequence of steps was continued endlessly.
How much water is poured on each step after sufficiently long time?

2007-12-05 05:44:41 · 4 answers · asked by Alexander 6

two and two hundred two hundred thousands thats whats in the book but
I dont know how to do it but it might be the books typeing mistake
thanks

2007-12-05 05:30:17 · 2 answers · asked by Anonymous

140 minutes equals what?

2007-12-05 05:24:51 · 7 answers · asked by Love-Love 1

The top and the bottom squares are made of a material that costs 7 dollars per square inch. The vertical sides are made of a different material that costs 6 dollars per sqare inch.
What is the minimal cost of a box of this type?

2007-12-05 05:19:44 · 2 answers · asked by Anonymous

For problems 1 & 2: List all factor pairs for each given integer.

48 ( 2)(24), (3)(16), (4)(12), (6)(8)

(1)(48), (2)(24), (4)(12), (6)(8)

(2)(24), (3)(16), (4)(12), (6)(8), (8)(6)

(1)(48), (2)(24), (3)(16), (4)(12), (6)(8)

For problems 1 & 2: List all factor pairs for each given integer.

84

(1)(84), (2)(42), (4)(21), (6)(14), (7)(12)

(1)(84), (2)(42), (3)(28), (6)(14), (7)(12)

(1)(84), (2)(42), (3)(28), (4)(21), (6)(14), (7)(12)

(1)(84), (2)(42), (3)(28), (4)(21), (7)(12), (8)(9)


For problems 3 & 4: Find the prime factorization of each number. Then select the correct answer.

88. 2 • 32 • 5

22 • 3 • 5

23 • 11

22 • 11

For problems 3 & 4: Find the prime factorization of each number. Then select the correct answer.

476

For problems 5 & 6: Find the GCF of each group of numbers.

132, 220 (Points: 1)
11

20

44

4
For problems 5 & 6: Find the GCF of each group of numbers.

348, 426 (Points: 1)
3

6

12

9

2007-12-05 05:17:03 · 1 answers · asked by Jackie 2

How much pure acid should be mixed with 3 gallons of a 50% acid solution in order to get an 80% acid solution?

7.5 gal
4.5 gal
12 gal
1.5 gal

2007-12-05 05:08:57 · 2 answers · asked by Anonymous

Perform the indicated operation and Simplify the results.

sec 0 - 1/ sec 0

2007-12-05 04:59:56 · 5 answers · asked by confusedlady 1

its related to maths

2007-12-05 04:53:09 · 8 answers · asked by Anonymous

...and is able to move it 45 degrees from the perpendicular...calculate the torque applied...

2007-12-05 04:51:38 · 2 answers · asked by Soni 2

2007-12-05 04:48:51 · 3 answers · asked by danielle d 1

In my science lesson today we were weighing ourselfs in newtons, now we need to convert it to stones. Does anyone no the calculation to do this ? Thanks

2007-12-05 04:40:36 · 4 answers · asked by Anonymous

i just can't figure this one out i need help can anyone help to understand?

2007-12-05 04:38:19 · 5 answers · asked by Anonymous

x
∫f(t)dt = xe^2x + ∫ (e^-t) f(t)dt
0
for all x, find an explicit formula for f(x)

I'm pretty confused on the layout of the function.
So its adding xe^2x to the integral? and if so how would someone integrate something like this?

(By the way, the second ∫ has the same limits: from 0 to x)

2007-12-05 04:38:11 · 4 answers · asked by ret80soft 1

this has to do with a cricket problem. here it is... answer right away, i need it soon!!!

40 50 60 70 80 90 100 110 120 130 140 150 160 170
50 60 70 80

[the 50 is below the 4, the 60 is below the 80, the 70 is below the 120, and the 80 is below the 170]

the top row of numbers is the chirps per minute, and the bottom row is the temp. when the cricket chirps that much. i cant find a continuous pattern, plz help by filling out the rest of the bottom of the table thanx so much!!

2007-12-05 04:37:10 · 4 answers · asked by smartiechick16 2

please help, thank you.

2007-12-05 04:27:06 · 2 answers · asked by weetereatter 2

The maximum number of truck routes, t, that are needed to provide direct services to n cities, where no three cities lie in a stright line, given by the equation t= n^2 -- n all over / or divided by 2. How many truck routes will be needed to run service between 7 cities???

The answer I got was 21 truck routes. Is that correct?

2007-12-05 04:25:04 · 2 answers · asked by Jewel 1

2007-12-05 04:22:59 · 6 answers · asked by Riki R 1