Mathematics - 1 November 2007

no direct answers please

2007-11-01 23:25:07 · 8 answers · asked by Anonymous

the length of the minute hand of a clock is 10.5cm.It's end covers a distance of 22cm while travelling from 55minutes past 12 to x mins past 1.Then x=?

2007-11-01 22:45:22 · 3 answers · asked by Anonymous

How can i produce algorithm in pseudocode?

how can i produce an algorithm in pseudocode for finding the average mark for a given set of 10 marks

2007-11-01 22:26:54 · 3 answers · asked by Anonymous

a horse runs 40km per hour faster than a mule, the horse runs 360km in 3 hours less time than the mule goes 360km, find the speed of the two animals.

2007-11-01 21:55:55 · 10 answers · asked by Anonymous

eater than 27.what is the original number?

2007-11-01 21:39:26 · 4 answers · asked by chinakabogu 1

In a sanctuary there were1600 animals.Their no. increases by 5% every year.What will be the no. of animals after 2 years?

2007-11-01 21:34:23 · 6 answers · asked by Anonymous

someone said,

(4^n)*2n! this is the formula for finding the last non-zero digit .

i don't understand whats n here .

it was told that we can use this formula to find last non-zero digit of 10!

can we do it really ?

How ?

i don't understand the terms involved in that formula hence not able to implement.

please help

thanks

2007-11-01 21:20:19 · 2 answers · asked by calculus 1

2007-11-01 21:17:33 · 4 answers · asked by redkazoo 5

2007-11-01 20:59:32 · 5 answers · asked by Anonymous

Imagine a rope wrapped around the Earth at the equator. Then think of adding "d" feet to the rope's length s o it can now circle Earth at a distance "h" feet above the equator at all points.
1. Write an equation to model this situation.
2. Solve your equation for "d"
2. How much rope do you need to insert if you want the rope to circle Earth 500 feet above the eqautor? Use 3.14 for π.

2007-11-01 20:54:49 · 5 answers · asked by Anonymous

I don't remember how to calculate the percent?
for example,I want to buy something that cost 130 dollars,and there is a 20% of discount?how can I calculate the final amount?or vice versa..

2007-11-01 20:21:14 · 30 answers · asked by Anonymous

prime and composite

2007-11-01 20:20:06 · 26 answers · asked by dennis f 1

How do we integrate tan(x)*Sec(x). Would it be by substitution, letting u = tanx?

2007-11-01 20:11:48 · 7 answers · asked by chengdu 1

For example 9x+10=7x-6 do i
9x+7x=-6+10 or
9x-7x=-6-10?

I don't know when to subtract or add

Please help

2007-11-01 20:06:38 · 10 answers · asked by Anonymous

the function is a piecewise function:

F(r) =
{ (mgR^2) / r^2 if r >= R
{ mkr if 0 <= r < R

g and k are positive constants and R is the radius of the earth. given that F(r) is continuous, find k in terms of g and R...

no idea where to start...

2007-11-01 19:56:17 · 2 answers · asked by Anonymous

2007-11-01 19:51:57 · 0 answers · asked by ALEXANDER 2

You can use a calculator, i assure you its not what you would expect....or is it?

2007-11-01 19:40:14 · 16 answers · asked by *Smokers* 1

Hari wants to set up a 1500m obstacle course.
The start-finish line is at grid reference 251132. The first leg is 600m long. First turn is at grid reference 631596. Second leg is 250m long at a bearing of 309 degrees.
Is this a 1500metre course?

2007-11-01 19:34:03 · 5 answers · asked by Trev M 1

2
(x1-1)( x + 3x + 2)

(one x take away one)(x to the second power plus three x plus 2)


he wants us to multiply

2007-11-01 19:31:59 · 7 answers · asked by Amy4U 1

when u minus two numbers the answer u get is 8 .. wen u multiply its 17 so what will u get wen sum of their squares is taken.

It's meant to be very easy.

2007-11-01 19:23:32 · 2 answers · asked by Jenny H 2

2
4n - 3n - 1
3n
___________



the 2 floating means to the second power

2007-11-01 19:21:56 · 7 answers · asked by Amy4U 1

How could I solve this problem?

If (-4, 1) is an ordered pair of the function f(x), then which of the following would be an ordered pair of f ^-1(x)?

1) (1, -4)
2) (4, -1)
3) (4, 1)
4) (-1, 4)

2007-11-01 19:20:44 · 2 answers · asked by Anonymous

Just for fun, I was doing a proof of propositional logic, but I got stuck trying to prove that Pv(QvR) implies (P&Q) v (P&R).

I tried assuming the negation of (P&Q) v (P&R) --in order to negate that later and get (P&Q) v (P&R)-- but it's not getting me anywhere... anyone know the answer?

2007-11-01 19:16:17 · 2 answers · asked by Flaze 3

I am trying to find some algorithms for subtraction and I have to explain them as simple as possible. Can anyone help?

2007-11-01 19:11:55 · 1 answers · asked by The O 1

for the sake of arguement humor me if three people with telepathy sat down to play poker with $100 each how long would it take to walk away with $30,000

2007-11-01 19:05:49 · 2 answers · asked by robert r 2

x^4 - 6x³ + 17x² -54x + 72

= ?

(x+3) (x-2) .. err nvm

help !!~!!! >< thank you~!

2007-11-01 18:57:11 · 3 answers · asked by John 1

how would you find all real solutions with answers in the form value+valueKpi?

2007-11-01 18:55:51 · 2 answers · asked by Anonymous

ok, here it is
Write the function as a product of linear and irreducible quadratic factors, all with real coefficients.
f(x) = 2x³+7x²+6x+9

any help is appreciated , thanx a lot~!! ^-^

2007-11-01 18:36:29 · 3 answers · asked by John 1

Find g(x), f(x), h(x) such that f(x), h(x) are both anti derivatives of g(x). but there is NO constant c such that f(x) = h(x) +c for all x in the domain of g.

Read carefully, and explain.

2007-11-01 18:15:35 · 2 answers · asked by Anonymous

Well, i'm in geometry and my teacher gives us WPS (Weekly Practice Sheets). its basically reviews from stuff we learned before. Its just that i have no idea what these problems are...

1: Simplify: 2d(7 - d) + 3d(squared) Only the last d
2: Solve: -2/3f = 4(1/3f +1)
3: Solve: 5/2y = 7/y3
4: There is a triangle and i have to find the 3 sides.
Angles A, B, and C
Angle A shows (9x-6) degrees
Angle B shows (2x+2) degrees
Angle C shows (2x+2) degrees

All i know for #4 is that its an isosceles triangle and the mesures should all add up to 180 degrees.

P.S. (The / signs means its a fraction)

PLEASE HELP!!!

2007-11-01 18:13:09 · 4 answers · asked by Anonymous