Mathematics - 5 September 2007

WHat i/s the radius of a circle whose area is 616 square meters

2007-09-05 05:19:43 · 7 answers · asked by Anonymous

Don ordered 2 times as many boxes of ballpoint pens as boxes of felt tip pens. Ballpoint pens cost $3.50 a box and felt tip pens cost $4.50. If Don's order of pens totaled $46, how many boxes of each type of pen did he buy?

2007-09-05 05:17:35 · 3 answers · asked by ladyfang 2

a. -3 < 8
b. -8 >3
c. 3 > -8
d. 8 > -3

2007-09-05 05:14:38 · 3 answers · asked by phillylady4u 2

a. (-2) + (-7) = +3
b. (+5) + (-7) = -2
c. (+5) + (-7) = +12
d. (+5) + (+7) = -2

2007-09-05 05:03:18 · 8 answers · asked by phillylady4u 2

1. 27x³ - 8
2. 9x² +30x + 25
3. 4x² -23x +15
4. 9x² - 66x + 121
5. 6x² + 9x

2007-09-05 04:55:26 · 4 answers · asked by shiela_closer 1

NOTE: I am not asking for the answer, I would like to try to figure out the answer myself, because I want to understand what I have to do. If you give me the answer, though, please tell me how you got that answer so I can learn it ..thanks!

1. 4,7,3,4,...
In the sequence above, the first term is 4, the second term is 7, and each term after the second term is the nonnegative difference between the previous two terms. If the nth term is the first term of the sequence that is equal to zero, what is the value of n ?

2. If the average (arithmetic mean) of q, r, s, and t is 10, what is the average of s-r, 3r+t, 10-r and 6+q ?


3. If x^10= 5555 and x^9/y= 5, what is the value of xy?


math class is soooo hardd..
thanks for the help

2007-09-05 04:52:46 · 5 answers · asked by alicia 2

2007-09-05 04:47:16 · 5 answers · asked by pinkparadiseforever 2

3 less than twice a number is -4. Find the number. Any help with this problem will be GREATLY appreciated! I'm about to go crazy! I know it's right in front of my face but I'm too frustrated now...this sucks! lol

2007-09-05 04:39:10 · 13 answers · asked by countess_von_katz 2

2007-09-05 04:30:07 · 20 answers · asked by arnawaz b 1

How many yrs will it take 1000 dollars invested at 7% interest to earn 280 dollars?

what formula will i use for this?

2007-09-05 04:19:28 · 4 answers · asked by Anonymous

solving equations in one variable - symbolically and graphically.

please tell me all you know about this subject. possibly with examples. can you please make it understandable to a 9th grader. thanks. :]

2007-09-05 04:11:11 · 4 answers · asked by Anonymous

2007-09-05 04:05:02 · 9 answers · asked by dan 1

f(x) = 3x² - x - 4

2007-09-05 04:04:20 · 2 answers · asked by Michael S 1

1.Find the value of m if

mx^2 - [2 (squareroot2)]x + m - 10


2. log base 3 (x +5) = 1 + log base 9 (2x + 1)


THANKS!!

2007-09-05 03:55:30 · 1 answers · asked by Anonymous

What is the slope of the line that passes through the points (3, 6) and (3, 10)? I am having trouble on this one I either come up with 0 or 4 can some one please help? I know what I am doing but I dont know what I am messing up on...I take (y2-y1)/(x2-x1) which is (10-6)/(3-3)...

2007-09-05 03:43:05 · 9 answers · asked by MEB 2

I have to integrate x/(2-x) dx.
I've tried everything I can think of and I can't figure it out. I think I might be missing something really simple. Or maybe not =\.
Anyway, help is appreciated.
Thanks!

2007-09-05 03:34:18 · 3 answers · asked by infinitelygreen 1

Prove the statement about the divisibility of integers

If d I (a+b), and d I a, then d I b

2007-09-05 03:31:24 · 4 answers · asked by Dan 1

Prove the statement where M and N are integers.

if x=5m+6 and y=5n+6, then xy=5k+6 for some integer k.

2007-09-05 03:29:24 · 3 answers · asked by Dan 1

1/3x + 3

2007-09-05 03:21:38 · 5 answers · asked by Michael S 1

examples
1.[ -124 ]
2.[ -31+15 ]
3. - [ 8+9-21]

2007-09-05 03:19:06 · 6 answers · asked by Anonymous

how do i find what coordninates they will hit at?

one has a slope of 10/1 with coordinates of (0,8) and the other has a slope of 8/1 with coordinates (0,4).

please show your work.

2007-09-05 03:09:27 · 2 answers · asked by manly b 1

whast teh answer

2007-09-05 03:07:01 · 4 answers · asked by edgarec17 1

1. x³ + 5xsqrd+4x
2. 30xsqrd+25x
3. 9x - x³ - 3xsqrd
4. 4x+8xsqrd
5. xsqrd - 25


please show the solution...

2007-09-05 03:05:24 · 5 answers · asked by shiela_closer 1

2007-09-05 03:05:03 · 13 answers · asked by Anonymous

Find the exact value of cos^ -1((cos(4pi/3))

2007-09-05 02:38:52 · 2 answers · asked by austin 1

Jack picks 5 pounds of apples in 8 minutes and Jill picks 6 pounds of apples in 10 minutes. Working together at this rate, how many pounds of apples will they pick in 40 minutes?

2007-09-05 02:16:31 · 12 answers · asked by Barbie 1

WTF??? I've never seen anything like this!!! Can anyone help me out?

2007-09-05 02:13:25 · 5 answers · asked by nunyan 2

2007-09-05 02:01:17 · 2 answers · asked by squee 2

This is a weird math problem. i'm trying to help my kid do her homework, but it's been 15 years since I've done these.

2007-09-05 01:31:46 · 4 answers · asked by nunyan 2

I'm 11 so I'm not smart in math but I'm smart in other classes. its a long story and these questions are giving me a hard time.
Question: Three people can pick six baskets of apples in one hour. How many baskets of apples can 12 people pick in one-half hour. Just tell me how to solve it.

2007-09-05 01:15:18 · 13 answers · asked by Charles F 2