Mathematics - 21 October 2007

2007-10-21 18:01:24 · 7 answers · asked by glamour girl 1

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture10.png

2007-10-21 17:58:33 · 1 answers · asked by Anonymous

How do you find all solutions real and complex on the following problem?


f(x)= (x^5)-(5x^4)+(12x^3)-(24x^2)+(32x)-16


thanks.

2007-10-21 17:57:33 · 4 answers · asked by Coma White 5

factor in steps please:

2x^2-3x+4

2007-10-21 17:57:28 · 4 answers · asked by sh0rtcutie01 1

Solve the inequality
x - 2
------- < 7
8

2007-10-21 17:54:29 · 2 answers · asked by jane 1

The area of a rectangle is 300cm². Find the length and width if the ratio of length to width is 4:3

LENGTH = ?
WIDTH =?

2007-10-21 17:54:03 · 2 answers · asked by Paradromer 1

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture6.png

2007-10-21 17:52:01 · 3 answers · asked by Anonymous

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture4.png

2007-10-21 17:49:35 · 2 answers · asked by Anonymous

Solve the equation and express the solution in decimal form: 1.46x + 1.48(450 - x) = 661.5

2007-10-21 17:46:10 · 6 answers · asked by jane 1

Find the circumference and area of a circle with radius of 7 feet. Use pi = 3.14 and round your answers to the hundredth.

C = 21.98ft and A = 615.44ft squared

C = 43.96ft and A = 153.86ft squared

C = 21.98ft and A = 153.86ft squared

C = 43.96ft and A = 615.44ft squared

2007-10-21 17:43:34 · 5 answers · asked by Anonymous

I had a 96.6% in my biology class, and i took a test which i got an 85% on. After this 85% my grade dropped to an 89.8%. How much percent of my total grade would the test have to be for my grade to drop 7%!?

Also, does anyone else think this is completely ridiculous??

2007-10-21 17:41:42 · 2 answers · asked by fadlallah42 1

2007-10-21 17:40:31 · 9 answers · asked by closure 2

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20717%20test/Picture2.png

2007-10-21 17:39:40 · 3 answers · asked by Anonymous

The distance around a circle is called the

diameter

circumference

radius

chord

2007-10-21 17:38:10 · 13 answers · asked by Anonymous

For the equation given below, evaluate y' at the point (1, 9).

y / [ x - 7y ] = x^4 + 9

so im working on implicit differentials now and i swear it's the one concept that is brainfuckling me. i've finagled my way through a few problems, but im utterly lost on how to do this one.

2007-10-21 17:31:32 · 3 answers · asked by AppleCard! 2

2007-10-21 17:26:37 · 14 answers · asked by Cyber Bullying Is Ugly 2

how do you solve the problem

x squared +6x+9=0

please show step by step.

thank you very much!

2007-10-21 17:21:53 · 8 answers · asked by Anonymous

2007-10-21 17:17:48 · 12 answers · asked by Anonymous

I would like to know if this class called analysis( advanced calculus ) is very very hard. I am taking introduction to advanced mathematics , where these topics are covered: (naive set theory, functions, cardinality, sequences of real numbers and limits. Emphasis on formal proofs.) How hard was the analysis class when you took it? was it like hell ? what about abstract algebra.
I ask this because i dont want to be messing with the wrong major. I like math but when i see the kind of problems that are in those classes , i get a little intimidated.

2007-10-21 17:17:35 · 3 answers · asked by Anonymous

I remember from class that we learned how to do these but there were cases where you had to use cramer's rule. anyways...I'm stuck on this one because I expanded it and then I didn't know what to do. I can't find any examples like that in my notes. I need to know what to do next or if I should have used the dx, dy, dz thing. the problem is

a 0 2 1
b 1 3 0
c 0 1 2
d 1 0 1

thanx!!!!!!!!!!!

2007-10-21 16:51:47 · 6 answers · asked by angelicasongs 5

1. Solve the formula 3x-8y=10 for y
2. Solve I x I = 5.5 in terms of x
3. Solve the equation 4x - 3(x - 3) = 6

2007-10-21 16:50:56 · 9 answers · asked by austin 1

please show how to solve with steps
_ __
a.(-2+\ / -8) + (5- \ / -50)


( \ / is square root)

2007-10-21 16:46:43 · 14 answers · asked by jason 1

I really need help in math, can anyone please help me...

The revenue of Portside Fish Shanty, located at a popular summer resort, is approximately
R(t) = 2(5 -4 cos 6(π/6) t
;

where 0≤ t ≤12, t is measured in weeks with t = 1 corresponding to the first week of June, and R is measured in thousands of dollars.The cost function, over the same interval of time, is given by
C(t) = 1 + (2π/3) t ;

and it is also measured in thousands of dollars.

(a) Find the intervals of increase and decrease of R(t).
(b) Find the intervals of increase and decrease of C(t).
(c) Find the intervals of increase and decrease of the profit functionP(t).
(d) At what value of t is the prot maximized? What is this maximum profit? You must fully justify your answer .

For this question, part a, do i have to change the cos to a actual number so i can solve for the critial numbers?
and for this, there is only one critial number? So what to do with one critial number?

Thanks!

2007-10-21 16:38:30 · 1 answers · asked by Anonymous

tell me a equation with as many vairibles as u like impossible to be equal. but it cant have obvious things wrong with it like using a divide by zero but more technicalitys. i dont think there is one but.. lets see

2007-10-21 16:34:58 · 6 answers · asked by Anonymous

(x^2/x+10) plus (14x+40/x+10)
Ok does this make since to anyone? I get mixed up when there are powers and fractions together.

2007-10-21 16:32:18 · 3 answers · asked by meme 1

http://i20.tinypic.com/b6yr8z.jpg

please help me.. i've been struggling with this for like an hour now...

i need to multiply those together and simplify...

thank you..

2007-10-21 16:27:57 · 6 answers · asked by lalalallalalllal 2

2007-10-21 16:10:26 · 23 answers · asked by Anonymous

a) Prove that the derivative of an even function is an odd function
b) Prove tha the derivative of an odd function is an even function

Any help is apreciated!

2007-10-21 16:10:25 · 1 answers · asked by alanis118 1

2007-10-21 16:05:18 · 10 answers · asked by alawrence108 1

could u show me how 2 do this


thanks!
-3y = 4(y-1)/5 (all of 4y(y-1) is over 5)

2007-10-21 16:03:32 · 2 answers · asked by Anonymous