Mathematics - 4 September 2007

Looking back on high school stuff, I crossed 1 easy looking problem that I can't solve


here it is


if ax+b=3 and a cannot equal 0, then x= ?

2007-09-04 05:20:29 · 9 answers · asked by rocker chick 2

2007-09-04 05:17:37 · 11 answers · asked by shawna 2

what are the advantages of having a pretest whan conducting a questionair that has closed questions

2007-09-04 05:15:10 · 1 answers · asked by jimp1174 1

in terms of something quantifiable like football pitches. i have an idea of the size of a football pitch but can't imagine 5000 acres or 20,234,282.112 m2

2007-09-04 05:10:06 · 9 answers · asked by Stephen M 6

Hi,
What does systematically mean? Please explain as best and as fully as you can!
Example: To work systematically!

Many Thanks
Ellie Hart

2007-09-04 05:01:58 · 4 answers · asked by Wise Girl 2

I have a 30 problem assignment due tonite and these are the last few questions I cannot get. I just went back to school to change my major and haven't had calc a in 4 years so don't make fun of me if these are extremely simple please =)

[INT FROM 0 to 1] x^(2)((fifth route)e^(x)) dx

[INT FROM 1 to 6] sq route(t) lntdt

[INT] 340cos^(4)(20x)dx

[INT] sin(4x)cos(13x) dx

[INT FROM 0 to Pi/2] sin^(5) x cos^(16) xdx

Any help is super appreciated. Thanks y'all!

2007-09-04 04:59:23 · 3 answers · asked by Anonymous

A dollar bill is 15.5 cm long. If 7 trillion dollar bills were laid end to end around the earth's equator, how many times would they encircle the planet? Radius of planet = 6,378 km.

I keep trying it but I always end up at the number of bills, and the way I'm working it would just give me that answer and then back to the circumference. Can someone tell me how to set this up?

2007-09-04 04:56:20 · 11 answers · asked by Daw 1

2007-09-04 04:55:52 · 5 answers · asked by Kathy B 1

Jason leaves Detroit at 7:00 PM and drives at a constant speed west along I-96. He passes Ann Arbor, 40 mi from Detroit, at 7:48 PM. (a) Express the distance traveled in terms of the time (in hours) elapsed.

2007-09-04 04:51:40 · 3 answers · asked by lady_divine@sbcglobal.net 1

On a lab I should have gotten 7.8 * 10^7 but I got 1.2 *10^6. Do I have to look at the number preceding the power or just see if the power that it is raised to is within 1?

EG - I know that if I would have gotten say 8.0 * 10^7 that would be within a power of 10 but is 1.2 too little? Am I over thinking this way too much?

2007-09-04 04:50:39 · 5 answers · asked by bobdpirate2002 2

i cant seem to figure it out! can anyone explain it to me? thanks.

1) 10 – 3x = 2x – 8x + 40
2)9(y + 2) = 3(y – 2)

2007-09-04 04:43:43 · 10 answers · asked by Anonymous

Can someone please help me on these I need to no how to get these by going through step by step process.Thank you for all your help...

1. Given the equation y = 3x – 2, if the x coordinate of a point on this line is 5, what is the y-coordinate?


2. Give three points that lie on the line 4x – y = 6.


3. What is the slope of the line y = -3x + 4?

2007-09-04 04:36:54 · 9 answers · asked by MEB 2

1. The probability of you receiving a 7 by rolling two dices is
greater than, or less than, or equal to 16%?
Explain your reasoning.
2. There are four apples on the table. You take away 3. How many do you have?
3. You can use the toilet in 2.5 minutes while your friend can do his job in 3.25 minutes. If you both used the toilet, how long would it take?
4. The rate at which you relase poop within the 4 seconds of release is modeled by the function f(x) = squareroot(x), where x represents the force used and f(x) represents amount dumped in toilet.
a. Evaluate f'(x)
b. Please explain the meaning of f'(x)? f''(x)?
c. Is there a meaning for the integral of f(x)? If no, explain.
5. You go and play roulette at casino. You realize your chances are 50/50 to win per roll. You have lost for 5 consecutive tries. What are your chances of really winning on the 6th roll.

2007-09-04 04:33:49 · 8 answers · asked by Axis Flip 3

Vector A has a magnitude of 12.0 m
Vector B has a magnitude of 18.0 m
Here is the figure(just copy and paste it to your address box):

http://i60.photobucket.com/albums/h23/cjantono/gg.jpg

2007-09-04 04:28:31 · 2 answers · asked by tata 2

How do I find the limit, L, for:

lim√x
x => 16

then how do i use the ε-δ definition to prove that L is the limit?

2007-09-04 04:14:31 · 1 answers · asked by Anonymous

a squard - b squard + 2bc - c squard

2007-09-04 04:13:57 · 9 answers · asked by Benita A 1

1. find the root of the equation Z^2 - Z + 1 =0

^ means to the power of.

2007-09-04 04:08:52 · 4 answers · asked by Mystic healer 4

2007-09-04 04:08:19 · 9 answers · asked by Anonymous

calculate lim-->9 f(b) by first finding a continuous function which is equal to f everywhere except b=9

2007-09-04 03:34:50 · 4 answers · asked by Anonymous

2007-09-04 03:32:09 · 11 answers · asked by Benita A 1

you may assume that lim x-->o ((sinx)/(x))=1

2007-09-04 03:26:49 · 2 answers · asked by Anonymous

Prime numbers are numbers that can only be made by multiplying that number by one; 1,2,3,5,7,11,13,etc. what are the other numbers (4,6,8,9,10,12. . .) classified as?

2007-09-04 03:15:00 · 9 answers · asked by xxxbleedingspiritxxx 2

the limit of the function does not exist.

lim f(x) ≠ lim f(x)
x => c- x => c+

what makes it a discontinuity and is it removable or not?

2007-09-04 03:08:27 · 1 answers · asked by Anonymous

it looks like this:

lim L x ||
x => 3+

the brackets around the x are wierd looking, like to two capital L's. I have no idea how to graph it... It's a limit problem, so I have to find the limit for it, as x approaches 3 from the left.

2007-09-04 02:58:34 · 2 answers · asked by Anonymous

May has twice as much money as Nancy. Osman has thrice as much money as May. If the 3 childrenhave $585 in all, how much money does May have?

2007-09-04 02:57:52 · 9 answers · asked by Anonymous

A pair of scissors cost $8 less than a knife. If 3 pairs of scissors and 2 knives cost $86, find the cost of 1 pair of scissors.

2007-09-04 02:53:24 · 13 answers · asked by Anonymous

Thank you to all of those that answered my previous questions. I really appreciate everyone's help.

I have just one more problem that I have been having trouble with.


x / x^2 -4 + 1/ x+2 = 3

2007-09-04 02:50:05 · 4 answers · asked by Anonymous

1.If the radius of a cone is increased by 100%, its volume will be increased by what %? how?
2. What should be the length of a rope by which a cow must be tethered to graze an area of 2464 m sq.? how?
3. (sq root of 2 minus 1) upon (sq root of 2 + 1)? how?

2007-09-04 02:47:03 · 4 answers · asked by Anonymous

lim [(√3+x)-(√3)] / x
x => 0

what is the limit?

2007-09-04 02:46:29 · 4 answers · asked by Daniel B 1

Exponential functions are used to calculate continuously compounding interest rates.

For example, pretend a bank is offering 12% interest, compounding annually.

You would make 12% that year.

If it is compounding monthly, you'd make effectively 1.01^12 = 12.68%

If it is compounding daily, you'd make effectively 1.000328^365 = 12.747%

If you've had calculus, you know about infinite series. If you break the compounding periods down into infinity, to where it is "continuously compounding", it converges to e^r*t. So in our above example, e^.12 = 12.7497%.

This concept is used in a lot of financial markets for asset pricing, etc.

e is also used a lot in statistics.

2007-09-04 02:42:22 · 2 answers · asked by Cat 1