Mathematics - 18 June 2007

I'm having a hard time with figuring out the increase and decrease with some decimals. Heres one question:

A companys budget has been reduced by 6% compared to last year. If their budget is now $3431, what is the budget for last year?

The answer I keep getting is $3636.86

I know the answer I keep getting is wrong and I do have the correct answer in my book. I somewhat get how everything works, but if you could please give a detail on how you got your answer, I'd really appreciate it. Thanks in advanced!

Also: if theres an easy way to understand how to do everything, could you let me know as well.

2007-06-18 12:09:23 · 7 answers · asked by PfcsBaby 5

2007-06-18 11:49:09 · 3 answers · asked by amandablake3194 2

how do you solve !x-3! the ! are absolute value signs..sorry. idk how to type it.

also how would you graph such an inequality? thanks for all the help.

2007-06-18 11:41:09 · 3 answers · asked by Anonymous

PERMUTATIONS, and (seperate question) IF there must be ONLY one girl chosen??

2007-06-18 11:33:36 · 3 answers · asked by pugbunny_ash 1

CONFUSING!!!!!!!

2007-06-18 11:33:23 · 7 answers · asked by amandablake3194 2

Find the equation of the tangent to y=x^2-4x+1 that is perpendicular to the line with equation 3x+ 6y-2=0

2007-06-18 11:29:52 · 5 answers · asked by christian_sese 2

Hey guys, I was just wondering if y = |x| can be considered as a bounded function? In addition to that, could you also tell me the definition of bounded function with an example.
My another question is if f(x) = 1/n, 1/n =x , n = 1, 2, 3, 4, and so on...is the function continuous, bounded, differentiable and integrable?
Thanks in advance.

2007-06-18 11:26:41 · 3 answers · asked by Guns N' Roses 1

what is the equation look like is all i need to know like ex) 20 / r = 5 (idk if that is it though) please help[!

2007-06-18 11:22:26 · 7 answers · asked by amandablake3194 2

One--third of the biology students got 's and four--elevenths of them got 's. What fraction of the class received a grade lower than ? (Answer should be rounded to three decimal places.)

2007-06-18 11:20:37 · 5 answers · asked by hllywdbabe7 1

Tyler leaves his California ranch on horseback and rides 18 kilometers (km) along a trail. He then gets confused and rides 11 km back in the direction he has just come from. When he realizes his mistake, he turns around again and rides in the correct direction for 6 km. How far is Tyler from his ranch?

2007-06-18 11:17:41 · 4 answers · asked by hllywdbabe7 1

A football field is 50 yards wide and 100 yards long,
a) How many feet wide is it?
b) How many feet long is it?
c) If a player runs one lap around the field, how far has the run?

2007-06-18 11:16:04 · 4 answers · asked by hllywdbabe7 1

I tried to use the chain rule to do this problem, but I can't figure out how to differentiate the outside term tan(u)^3. It should be 3sec^2(u)tan^2(u) but I can't figure out how to get it. Thanks.

2007-06-18 11:15:23 · 3 answers · asked by Anonymous

the probability for an engine to be running is .9
what is the probability that at least one engine is running if there are five engines?

2007-06-18 11:00:15 · 4 answers · asked by Anonymous

what does e^x and e^-x equal is it 1 and -1

2007-06-18 10:57:26 · 3 answers · asked by summitgirl06 1

1) y= -5f (x) + 3
2) y= 4f (1/2x) + 2
3) y= 2f (x+3) - 4

2007-06-18 10:29:35 · 4 answers · asked by bjm_116 2

Hi.
I came upon a problem that I am stuck with, I am not even sure how to begin.
I have these two equations:
1) x2 -3y2 + 10y = 19 ; (x squared minus 3y squared . . )
2) x2 -3y2 + 5x = 9; (x squared minus 3y squared . . )
How do I do this? Can someone please walk me through this step by step.
Thank you.

2007-06-18 10:25:24 · 5 answers · asked by F 6

1. -49x^2 + 28x = 4
2. 3x^4 + 4x^3 -9x^2 - 12x = 0
3. x^4 - 3x^2 + 4 = 0

2007-06-18 10:23:38 · 3 answers · asked by wizkid 2

If
A=y + 1/(y+3) find
dA/dy, simplyfying the answer

2007-06-18 10:19:22 · 3 answers · asked by Man of Doubts 2

Simple question i guess, can you just go through the steps involved using first principles?

2007-06-18 10:18:52 · 3 answers · asked by Anonymous

It is estimated that the Earth is losing 4000 species of
plants and animals every year. If S represents the number of species living last
year, how many species are on Earth this year?

2007-06-18 10:16:18 · 3 answers · asked by karen 2

2 sq root 12 + 4 sq root 20 - 3 sq root 27 - 5 sq root 45

and

(2 sq root 3 - 3 sq root 2) (sq root 5 + 4 sq root 45)

2007-06-18 10:08:54 · 4 answers · asked by bjm_116 2

of uniform width. if the total area of the garden and the grass strip is 90m^2, what is the width of the strip?




include a diagram, if possible

2007-06-18 10:00:56 · 5 answers · asked by bjm_116 2

Solve the equation. Don't forget to first simplify each side of the equation, if possible.
-4a + 3 + 5a = 12 - 21

-36
-12
36
12

2007-06-18 10:00:55 · 2 answers · asked by Anonymous

I just don't undertsand how to figure out math inequalities such as k/9>7 or any inequality. My final exam is tomorrow so please explain to me how to fugure out inequalities! Thanks!!!

2007-06-18 09:51:35 · 9 answers · asked by Anonymous

x^2-4x-11=0 and 3x^2+4x = 7

2007-06-18 09:51:13 · 5 answers · asked by bjm_116 2

Which of the following is the equation for a circle with center (5, -1) and radius of 4?

(x + 5)2 + (y - 1)2 = 16

(x + 5)2 + (y - 1)2 = 4

(x - 5)2 = (y + 1)2 = 4

(x - 5)2 + (y + 1)2 = 16

2007-06-18 09:47:02 · 8 answers · asked by Anonymous

Identify the center and the radius of the circle with equation (x - 6)2 + y2 = 49.

center (0, -6) and radius = 7

center (0, 6) and radius = 49

center (-6, 0) and radius = 7

center (6, 0) and radius = 7

2007-06-18 09:45:48 · 6 answers · asked by Anonymous

Factor each expression as a difference of two squares:
a^2 - (x+1)^2

What's 'a difference of two squares', and how would you use it in this problem?

How about the following question?

(c-d)^2 - e^2

I'm really confused right now, so please help!!!!!!!!
Thanks...
>.<

2007-06-18 09:35:22 · 7 answers · asked by Anonymous

1. x > 0 and y< 0
2. y < -5
3. x = -4 and y > 0
4. xy > 0

I bet you can't figure those out

2007-06-18 09:34:31 · 7 answers · asked by wizkid 2

Some number added to 5 is equal to -11. Find the number.

Some number added to -11 is 37. Divide this number by -12. Then, multiply by -8. What is the final number?

A friend of mine gave me these, and I'm having a hard time finding the answers.

Thanks in advance!

2007-06-18 09:21:48 · 19 answers · asked by Anonymous