Mathematics - 9 July 2007

I have 2 mathematical questions

A.) If it takes 1 hour to download a file on dialup internet, how long would it take to download the same exact file if my internet connection is 10 times faster?

B.) If it takes 25 minutes to download a file on my dialup connection now, how long would it take to download that same exact file if my internet connection is was 10 times faster?

2007-07-09 23:58:23 · 6 answers · asked by Anonymous

Why is 0 factorial equal to 1? Please prove it.

2007-07-09 23:46:17 · 13 answers · asked by Erika 2

But everyone else in the class made less mistakes then he did. Prove that there were at least 3 students in the class who made the same number of mistakes.

2007-07-09 23:43:32 · 6 answers · asked by micky m 2

hi some one is selling fish at 6cm long but as im old what is it in the old inchs please is it 2 inchs thanks

2007-07-09 23:37:10 · 4 answers · asked by qasarasara 3

please answer this..thank you..!!!

2007-07-09 23:28:51 · 10 answers · asked by Anonymous

2007-07-09 22:43:39 · 21 answers · asked by jamie s 1

given equation T=2pi square root of L/g
find the equation for: a. L and b. g

2007-07-09 22:19:33 · 4 answers · asked by Anonymous

Given equation= F=kq^1 q^2/d^2
find the equation for a. q^1 b. d

2007-07-09 22:17:45 · 2 answers · asked by Anonymous

"A", represents the angle

tried to solve it but I got "8 cos 4A" instead of "cos 4A". Pls... help.

2007-07-09 22:04:50 · 5 answers · asked by reddish 3

here is a question:
6753.4343471650 is there this kind of question?if it is, what does 0 stands for?

2007-07-09 21:30:35 · 7 answers · asked by girly 2

The problem is

1 / x - 3 + 1 / x + 3 = 10/x^(2-9)

the book says the answer is 5 and I've been working on this problem for 20 minute (sad) and I haven't gotten 5 yet. Help please.

2007-07-09 21:18:35 · 6 answers · asked by adrianchemistry 2

the integer m is between 40 and 100. when m is divided by 3, the remainder is 2. when m is divided by 7, the remainder is 1. what is the one possible value of m?

2007-07-09 21:13:14 · 6 answers · asked by [Music = love] <3 2

also y its 24 hr ?

2007-07-09 21:07:31 · 6 answers · asked by abu 1

What do you mentally see when you eg. add numbers in your head?

Usually, it's just unconscious..but sometimes it will be like eg. 16 + 25 Then the 16 kind of melts onto the 25 and I get the answer. ..anything u picture ...



Also, when you're doing eg. equations mentally ,
and you "see" the solution, what is this like ? Can you describe what you see in your head ...are the numbers/variables just moving around and falling into place

2007-07-09 20:30:12 · 11 answers · asked by Anonymous

1) Using a graphing utility to zoom in on the maximum point of the revenue function p=40-(5x^2). Use a setting of (1.62 >= x >= 1.65) and (43.5 >= x >= 43.6). Use the trace feature to improve the accuracy of the apporximation obtained in the example. Do you think this improved accuracy is appropiate in the context of this particular problem? Does it change the price?
2) This problem is comparing to a graph of p=40-(5x^2) with points (0,40) and ((sqrt8), 0).

I believe that 1) graph is inappropiate comparing to 2) because 2) deals with maximum revenue more...im not sure how to explain this though. When i graph the two graphs 1) gives me a different trace than 2). I hope that you understand what im trying to say. Need help with this as much as possible. thanks

2007-07-09 20:16:41 · 3 answers · asked by Bigboi924 1

Two heterozygous parents for albinism. If they have four children, what is the probability of them having 3 normal children and one albino?

For people without biological knowledge, the probability of having a normal child will be 3/4, the probability of having an albino child is 1/4. The answer to this question is 27/64, which happens to be (3/4)^3, or also (3/4)^3(1/4) x 4C3, but honestly i have no idea what is the correct way to think about or get to the answer, i just had the answer and noticed those two ways to get to it. please explain work, thank you

2007-07-09 20:13:14 · 2 answers · asked by virsingh3 2

show gcf before taking the resulting polynomial.
factor completely:
x^2 +5 +6x

2007-07-09 20:10:25 · 2 answers · asked by Anonymous

2007-07-09 20:05:12 · 11 answers · asked by JLee 1

you spend 30% of a 24 hour day at school, how many hours are you at school? i think its 8 ours is that right?

2007-07-09 19:07:52 · 13 answers · asked by Anonymous

What is the probability of having 3 girls and 3 boys?

If you do out every combination of 6 children:
BBBBBB
BBBBBG
BBBBGB
BBBBGG
BBBGBB etc..., you will find that there are 64 combinations, and 20 of them have 3 girls and 3 boys. (answer=20/64)
What is the mathematical equation to simplify this, as writing that out would take 15 minutes?

Please show the worked problem for the probability of 3 girls and 3 boys, and also for the probability of at least 4 girls. (answer for that one is 22/64)

Thank you

2007-07-09 18:56:27 · 2 answers · asked by virsingh3 2

How do you subtract logs with different bases?

2007-07-09 18:52:45 · 7 answers · asked by Anonymous

wat percent of 1.8 million is 153481? please round to the nearest tenth! thanx!

2007-07-09 18:51:45 · 6 answers · asked by camille_carson 1

A cylindrical drill with radius 1 is used to bore a hole throught the center of a sphere of radius 2. Find the volume of the ring shaped solid that remains.

I know that you can't just subtract the volume of the cylinder, as that does not take into acount the rounded top and bottom. If you could help me set up this problem, I would really appreciate it.

2007-07-09 18:26:04 · 5 answers · asked by Anonymous

x^3 - 1

I can't remember what to do when it's x^3 and there's no x to factor out.
Thanks

2007-07-09 18:20:36 · 7 answers · asked by Hmmm Andrew ♣ 2

ok my friend has asked me a math question and im stuck on it too.it is probably really simple but i need someone to refresh my memory since it has been so long since i have done math. ok here it is....99 is what percent of 396? and if u know it can u please explain how u got that answer thank u so much

2007-07-09 18:19:00 · 6 answers · asked by Anonymous

the second derivative tests for concavity but what about when you cannot solve for x because the second derivative is a constant

2007-07-09 18:09:28 · 3 answers · asked by tessa 1

Homework question, if you couldn't tell. My problem is that I don't know HOW to solve it with so little information, so if you could explain the steps I'd appreciate it!

2007-07-09 17:59:56 · 8 answers · asked by Anonymous

For the demand function p=40-(5x^2), when graphing it with the settings (1.62 >= x >= 1.65) and (43.5 >= y >= 43.6), is this setting appropiate to the context of the problem dealing with the maximum point of the revenue function than graphing p=40-(5x^2) with points (0,40) and ((sqrt8),0)? Does it change the price?

I was thinking it is NOT appropiate, but I cannot explain why. If possible if someone can explain to me more easily why the answer is the way it is. Thanks for helping me out, im not sure if im getting this maximization revenue thingy.

2007-07-09 17:58:08 · 2 answers · asked by Bigboi924 1

-2x=6

-12= -4x

5x= -10

-3x=15

4x= -6

28= -7x

-56= 8x

6x= -3

-42= -6x

9x= -54

4x= 7

-15 = -3x

-10 =8x

2007-07-09 17:52:46 · 6 answers · asked by Veritesirum 3

If abc =1, which of the following could be the number of integers among a, b, and c?

I. 1, II. 2, III. 3

a) none b) I only c) I and II d) I and III e) I, II, and III


The distance between Ali's house and college is exactly 135 miles. If she drove 2/3 of the distance in 135 min., what was her average speed, in miles per hour?

a) 40 b) 45 c) 60 d)67.5 e) cannot be determined


Please if you answer one of these question, EXPLAIN!

2007-07-09 17:33:16 · 8 answers · asked by Anonymous