Mathematics - 15 November 2007

Which numbers can represent the lengths of the sides of a triangle?

A) (1,3,4)
B) (4,4,9)
C) (5,7,9)
D) (8,5,3)

I tried adding the numbers and dividing them into 180 but they all heve decimals so i think i am doing it wrong Help please-- also could you tell me how you did it?

Thanks!

2007-11-15 07:19:37 · 5 answers · asked by Anonymous

if G is afinite group show that the number of nonidentity element that satesfies the equation x^5=e is multiple of 4.
" e is identity"

2007-11-15 07:14:18 · 2 answers · asked by Dana S 1

No guess and check or simply plugging in numbers allowed!

2007-11-15 07:08:22 · 4 answers · asked by Antichrist Svperstar 1

1. 5 + 3i

2. -2 + 5i

2007-11-15 07:07:41 · 4 answers · asked by wrongnumber 1

can someone explain to me in better terms than my book, how we get an answer for:

w+3 over 4w DIVIDED BY w-3 over 2w I am so lost without a teacher in front of me.. I do not recommend online classes without a teacher teaching you math. PLEASE HELP

2007-11-15 07:03:43 · 3 answers · asked by ~*~ victoria ~*~ 1

2007-11-15 07:03:11 · 6 answers · asked by biomes 1

I can get some quadratic equations, but i do them a long way. please can you show me how to do it a quick way.

2007-11-15 06:59:13 · 2 answers · asked by <,"(((>< 3

My daughter asked me to ask.

2007-11-15 06:54:26 · 6 answers · asked by Ace of Spades 5

how do you put subscripts and exponents without using like the ^ for an exponent?

2007-11-15 06:53:58 · 4 answers · asked by Matty B 3

The question is, find the root of the following redicals to the nearest tenth.

(square root symbol) / 205.78

AND

(square root symbol) / 416

2007-11-15 06:53:06 · 2 answers · asked by Anonymous

do i use the root test, the limit test...which test?

2007-11-15 06:51:27 · 6 answers · asked by whizkid2007 1

5 - x - 2 = 3 + 4x + 5

2.6x + 18 =m2.4x + 22

2007-11-15 06:45:13 · 6 answers · asked by Anonymous

1). A TRIANGLE OF BASE 8 CM AND HEIGHT 7 CM. Find the Area.

2). A TRIANGLE WITH A 50 MM BASE AND A 7 MM HEIGHT. Find the Area.

2007-11-15 06:40:46 · 10 answers · asked by jane 1

what would i^100 be when written in a+bi form when you perform the indicated operation on it?

2007-11-15 06:38:35 · 5 answers · asked by Ayy Girl! 1

f(x) = X ^2 -3

Is it invertible and if so what is its inverse?
I say Not invertible but I want to double check bc I am not good at these.

Along with this one

F (x) = 2x / x - 7

I didn't think that was invertible either....

2007-11-15 06:27:12 · 6 answers · asked by Nanna2 1

please wright down your work.

2007-11-15 06:18:46 · 4 answers · asked by Anonymous

A football is kicked following the path modelled by the equation h= -4t^2 + 10t + 3, where h is the hight of the ball above the ground in metres and t is the time since the ball was kicked in seconds.
a) describe the path of the ball
b) after how many seconds does the ball reach the ground?
c) how long does the ball stay above 5m?

Please briefly describe a and b as I think I can answer these but what I need to know is why when graphing this equation is the x-coordinate less than zero? Secondly, I have no idea how to preform the operations to answer c....Thanks ahead of time!!

2007-11-15 06:16:17 · 2 answers · asked by Anonymous

If a coin is flipped 3 times, and 2 out of those three times it comes up heads, what is the probability the second time it is flipped it comes up heads?

2007-11-15 05:59:20 · 6 answers · asked by MrV 2

give your answer in the simplest form

I'm stuck on this question...I tried completing the square but I got x = -2 + or - the sqroot of 4.5 and the answer is supposed to be x = -2 + or - 0.5xthe sqroot of 26

2007-11-15 05:54:29 · 2 answers · asked by Anonymous

Use the point-slope form of the linear equation to find an equation of the line with the given slope and passing through the given point. Then write the equation in standard form.

Slope -4; through (-7, -5)

2007-11-15 05:52:24 · 5 answers · asked by . 1

for any integer n>2 show that there are at least 2 elements in U-n
that satesfies
x^2=1
U-n"is agroup under multiblication modulu n;

2007-11-15 05:50:53 · 2 answers · asked by Dana S 1

I feel stupid asking this question but what is the derivitive of x^(1/x)

2007-11-15 05:48:25 · 4 answers · asked by jazzyrhythms 3

Through (-5, 4), perpendicular to the y-axis

2007-11-15 05:46:57 · 2 answers · asked by . 1

2007-11-15 05:45:17 · 13 answers · asked by Lydia 3

2007-11-15 05:44:14 · 5 answers · asked by jessika 4

hahaha i love these! This time, try to solve using Matrices! :

In 1990, the aquariums with the greatest attendence were the sea Worlds in Florida, California, and texas. The total attendance for all three was 10.2 million. Sea World of Florida had 0.3 million more than Sea World of California. Sea World of Cailfornia had 1.2 million more than Sea World of Texas. What was the 1990 attendance of each?

2007-11-15 05:26:49 · 5 answers · asked by Laura 1

Another optimization problem that my professor didn't go over. Any help would be much appreciated guys, I don't even know where to start. The problem is:

Find the rectangle of maximum area that can be inscribed in a right triangle with legs of length 3 and 4 if the sides of the rectangle are parallel to the legs of the triangle.

2007-11-15 05:04:03 · 5 answers · asked by Hotwng 1

(3 – 2*√7)*(3 + 2√7)

I think it is the multiplication symbol 2*√7 that is throwing me off.

2007-11-15 04:59:25 · 6 answers · asked by Anonymous

Let's say we want to find a subgroup of Zp of order q. What's a general way to go about doing this?

2007-11-15 04:59:25 · 1 answers · asked by Juxtaposer 2

Please, count the candies in the box."

Then, (knowing well that answer has 4 digits) she asked
Bekki - the first digit - Bekki aswered 3 - and got A
Tommy - the last digit - Tommy answered 8 - and got A

Because teacher noticed, that Johnny did not bother to count the candies, she decided to go hard on him and asked
Johnny - the middle two digits.

How can Johnny escape getting F?

2007-11-15 04:56:28 · 5 answers · asked by Alexander 6