Mathematics - 8 September 2007

find all solutions to the conditional equations in the interval (0,2π)
1. cos2X + cosX = 0
2. tan2X = tanX
3. cos2X - sinX = 0
4. sin2X + cosX = 0

2007-09-08 15:45:37 · 2 answers · asked by cigarette lighter 1

An area of a piece of paper is 0.035475 m^2.
A second piece of paper is three-quarters as long and three-quarters as wide as the first paper. By what factor is its area less than the area found in the first.

2007-09-08 15:42:38 · 1 answers · asked by Sanyok 1

help me solve this..you gotta use substitution =]

2007-09-08 15:41:45 · 10 answers · asked by Anonymous

I have 2 questions that I am struggling with. I know the answer for them but I have no idea how to find the answer. So please tell me how to solve them.

1. Suppose you have the following six coins in your pocket : 5 cents, 10 cents, 20 cents, 50 cents, $1, $2. How many different sums of money can you make?
-Answer: 63 Sums

2. Find the smaller of 2^175 and 5^75 without a calculator.
- Answer: 5^75

Thank you!

2007-09-08 15:32:29 · 3 answers · asked by SiwooHasAnswers 2

using substitution..anyone know how to solve this?

2007-09-08 15:26:59 · 11 answers · asked by Anonymous

can someone please help me solve this??
i know it's not an extremely difficult problem, but it's on a quiz and we only get one try to answer it so i'd like to compare my answer with what someone else gets.

(4/x+3) - (1/x-3) = 4x/x^2-9

2007-09-08 15:26:40 · 4 answers · asked by Melanie 3

Limit of [root of (h^2 + 4h + 5) - root of (5)] / h when h approaches to 0 ^ (-)

2007-09-08 15:24:58 · 2 answers · asked by Blesson 2

wats the diff, the textbook is confussing me with the two, becasue the teacher told us to use log base 2...and i used log base 10 ( direct imput into calculator - cos calculator is alwasy base 10 right?) and i STILL got the right answeer ...werid?

also can u use log base 2 on a calcualtor? or do u have to manually do change of base everytime?!?
THX!!! guys.

2007-09-08 15:09:26 · 9 answers · asked by Anonymous

Please provide at least 2 or if u can't, one is okay :) thank you.

2007-09-08 15:08:08 · 5 answers · asked by Sassafras 1

4777 minutes equals how many days?

2007-09-08 15:02:02 · 10 answers · asked by Anonymous

I came across this question in yahoo answer ::( proved 2=1)
http://answers.yahoo.com/question/index?qid=20070908160205AAjFloI&r=w#HJBWW0fOOE6fdSr17gC3

hence remembered my own acquisition on this matter with different approaches -:

So what or where was my mathematically perceived logic error ?

2 = 1
******
By the common intuitive meaning of multiplication we can see that

4 * 3 = 3 + 3 + 3 + 3

It can also be seen that for a non-zero x
x = 1 + 1 + ........+ 1 ( x terms )

Now we multiply through by x
x^2 = x + x +.............+ x ( x terms )

Then we take the derivative with respect to x
2x = 1 + 1 + ...............+ 1 ( x terms )

Now we see that the right hand side is x which gives us
2x = x

2 = 1

2007-09-08 15:00:09 · 10 answers · asked by raj_k65 1

Simplify.

-8 x |-8 x 8|

2007-09-08 14:42:00 · 1 answers · asked by alex b 1

2007-09-08 14:38:18 · 2 answers · asked by texan3715 1

i need help please!

how do you do it step by step

2007-09-08 14:34:42 · 4 answers · asked by Anonymous

x+3/2=3/4(x-1/2)

Whats the answer? How did you get the answer??

2007-09-08 14:16:07 · 4 answers · asked by Anonymous

6x^2+5x=4

2007-09-08 13:55:06 · 4 answers · asked by imyourangel724 1

..................................

2007-09-08 13:42:29 · 5 answers · asked by Anonymous

what are the digits of pi. like math pi. Not edible pi. ALL THE DIGITS

2007-09-08 13:39:31 · 10 answers · asked by Anonymous

how do you solve this using substitution??

oh and please type the numbers inside the parenthesis at the end =]

2007-09-08 13:37:42 · 10 answers · asked by Anonymous

How do i factor

2x^3 - 8x^2 - 24x

2007-09-08 13:32:24 · 2 answers · asked by Anonymous

1.if the 1st difference of a sequence are a constant -7 & the 3rd term is 22, find the 1st 5 terms of the sequence.

or

2. explain how 2 work backwards from & constant 2nd difference 2 extend the following sequence: 1,6,16,31,51,76

9th grade, algebra math, honors. dont ask me to switch to normal classes cuz i wont...

2007-09-08 13:19:06 · 2 answers · asked by [[you're only selling sex now]] 3

....................

2007-09-08 13:12:41 · 6 answers · asked by Anonymous

If a dice is rolled once, what is the probability that it will show a prime number (1 is not prime)?

2007-09-08 13:07:30 · 13 answers · asked by Anonymous

2007-09-08 12:50:10 · 6 answers · asked by house_6688 1

I have no idea how to figure this out-I've started it but keep getting confused. Please show me steps. Thank you so much!

2007-09-08 12:41:44 · 5 answers · asked by luckynluv001 1

I keep coming up with two different answers, -2.5 and -4. Neither makes he equation true.

2007-09-08 12:40:29 · 20 answers · asked by shroomdaisy359 1

c is a constant

2007-09-08 12:35:04 · 4 answers · asked by Anonymous

Need to round answer to three decimal places. Cannot get this answer!!

2007-09-08 12:25:42 · 3 answers · asked by luckynluv001 1

WORST MATH EVER AND I NEED HELP SQUARE EACH MONOMIAL
(A2)2=
(RS )2=
( -5Y4 )2=
(10X 2 Y 2 ) 2=

2007-09-08 12:23:27 · 1 answers · asked by chris l 1

Okay i dont understand this can you please help me what would the hundred term be

http://img211.imageshack.us/img211/6366/mathhz8.png

please explain how you got your answe

2007-09-08 12:21:15 · 5 answers · asked by Anonymous