Mathematics - 9 September 2006

i am thinking to opt for science with bio but my friends say that i should choose maths as it is very necessary . is bio tough in class eleventh?

2006-09-09 23:57:38 · 13 answers · asked by ships! 1

100/(x+30) = 100/x - 1/6

It's a question in my Math textbook.I'm practising the questions inside for revision, and my brain just isn't working...I've been doing Math questions for a few hours already...
Could someone show me the steps so I can understand the way to solve it?

Thanks for any help. :)

2006-09-09 23:55:34 · 7 answers · asked by Unknown Darkness™ 7

1. Statistically, the chance of being on a plane with TWO bombs is much less than being on a plane with ONE bomb. OK, both are pretty small probabilities, but surely it would be safer to take your own bomb on board a plane just to reduce the chance of another bomb being on board!!!

2. It is safer to drive at 100mph in a 30mph zone - statistically, hardly anyone crashes at 100mph, but loads at 30mph!

Have you any more?

2006-09-09 22:21:02 · 12 answers · asked by notatsi 1

For eg: 21 divide by 2 is 10.5, but many times children end up with 1.5 as the answer

2006-09-09 21:41:54 · 6 answers · asked by quantum_dot 1

i have a maths exam for 100 marks tomorrow.....im VERY NERVOUS.....any last minute tips????

2006-09-09 21:40:04 · 13 answers · asked by Janani . 2

2006-09-09 21:34:57 · 3 answers · asked by henry K 1

CD- common difference.
CR- common ratio.
GP- Geometric Progression.

2006-09-09 20:47:44 · 2 answers · asked by shasti 3

9. Four students from your economics class are sitting in a local restaurant discussing the market for coffee. Below are quotes from each of the four students. All of the following quotes are logically correct except one. Which quote indicates incorrect economic analysis?



A. Kendra: "If the price of caffeinated soft drinks such as Mountain Dew went down, then consumer demand for coffee would go down since they're substitutes for each other."

B. Nicholas: "If Brazil is hit hard by such a severe freeze that half of its crop is wiped out, then the price of coffee will probably rise."

C. Sergei: "If the demand for coffee were to increase, then I would expect the price to rise, which would then cause the demand to fall back down to its original level."

D. Tasha: "If coffee drinkers expect the price of coffee to

2006-09-09 20:37:21 · 6 answers · asked by Anonymous

2006-09-09 20:10:19 · 3 answers · asked by ahmet m 1

i'm behind in math (homeschooling) and need to catch up. I want to do an average of a few lessons a day, which requires a lot of motivation. i'm not too motivated in the math department because i've had trouble in the past (bad cycle, i need to stop). once i've been taught a concept by a competent teacher, i'm very good which leads me to believe that i have a natural talent for math. for instance, i can do multi-digit multiplication in my head, along with simple algebra. i'm also much more logical (personality trait that hints at mathematical talent) in everyday encounters, as opposed to a "feeler" like most women.. but i still procrastinate math.. i put it off like the plague. i'm almost afraid of it. it's sad because once i start doing it, i can find myself enjoying the simplicity and rawness of it all.. and usefulness and practicality. but this isn't enough to get me going!! what do i do? please don't suggest something like a rewards system or w/e.. won't work with me.

2006-09-09 19:59:57 · 8 answers · asked by Nenagh 1

2006-09-09 19:24:50 · 9 answers · asked by Anonymous

Like 1/3 is .33333....
Prove that all can be or that some can't be.

I'm working on a different approach, but some help would be nice, a straight answer would be even better :-)

-David

2006-09-09 19:07:46 · 11 answers · asked by Anonymous

2006-09-09 18:35:32 · 7 answers · asked by Anonymous

i try to open my safe box,but i forgot the number,
is there the only way to open is break it? or there is other way?

2006-09-09 18:27:43 · 8 answers · asked by cchi326 1

2006-09-09 17:58:58 · 4 answers · asked by Ella 1

i added this together is it correct?

16.43
4.94
6.83
4.27
5.97
.97


= $39.48? ty all

2006-09-09 17:36:45 · 11 answers · asked by the_sac_kings_r_number_1 1

There is only one pair of whole numbers that satisfy both of these conditions: their product is one million, and no digit of either number is zero. What are the two numbers?

2006-09-09 17:21:43 · 5 answers · asked by Kellie C 1

2006-09-09 17:05:17 · 5 answers · asked by RAYMOND 1

How do you solve a problem of this type? The best way I can explain is with an example:

A researcher plants 22 seedlings. After one month, independent of the other seedlings, each seedling has a probabilty of .08 of being dead, a probability of .19 of exhibiting slow growth, a probability of .42 of exhibiting medium growth, and a probability of .31 of exhibiting strong growth.

Calculate the probability that after one month:
a)Exactly three seedlings are dead, exactly four exhibit slow growth and exactly six exhibit medium growth.
b)Exactly five seedlings are dead, exactly five exhibit slow growth, and exactly seven exhibit strong growth.
c)No more than two seedlings are dead.


Please don't just give me the answer (this isn't the problem on my assignment so that won't do me any good), I need an explanation on how to solve - thanks in advance!

2006-09-09 16:52:13 · 2 answers · asked by Anonymous 3

2006-09-09 16:39:14 · 18 answers · asked by martyn b 1

2006-09-09 16:32:19 · 13 answers · asked by Kellie C 1

2006-09-09 16:30:25 · 9 answers · asked by Kellie C 1

1) If f(x) = 4x^2 - 3x + 7, find the instantaneous rate of change of f(x) at x = 4 using the Derivative power rule.

2) Find the derivative of f(x) = (6x^3 - x)(10 - 20x)

3)Find the derivative of the function f(x) = (x^2 +1)^3

Does anyone know how to help me with these three stat problems?thanks.

2006-09-09 16:21:40 · 5 answers · asked by Anonymous

write down in sequence form of (2+2)^-5 rainging to (2+2)^5.
Explain me which metthod do u use. CLUE: we can find by using binomial theorem abd distribution. do not allow substitution in place of n and p.

2006-09-09 16:09:00 · 2 answers · asked by free aung san su kyi forthwith 2

2006-09-09 16:01:53 · 16 answers · asked by smart 1

Solve and write as improper fraction if needed.
1. x+6=2(5x-5)
2. 8=4(8-9)-7x
Simplify.
3. k^5m^3
----------
n
---------------
k^4m^2
---------
n

4. 3(x-2)+5= -5+x-22

2006-09-09 15:59:29 · 11 answers · asked by pookynlefty 2

2006-09-09 15:59:08 · 8 answers · asked by Tezza 1

Please don't answer that this is because it have non-ending and non-repeating decimal. Please answer this question in science nature why pi is an irrational number.

2006-09-09 15:54:41 · 11 answers · asked by trey 1

2006-09-09 15:49:57 · 2 answers · asked by Chris M 2

On ray AB, how many pts are there whose distance from point A is 3cm?

On line AB, how many pts are there whose distance from point A is 3cm?

Can you explain why the answer is. Thanks!

2006-09-09 15:48:02 · 2 answers · asked by that's funny 3