Mathematics - 16 September 2007

Classify the following as true or false.
A ray has two endpoints.
A line segment contains an infinite number of points

2007-09-16 18:32:06 · 4 answers · asked by Anonymous

The "normal" lead content in human blood is about 0.40 part per million (that is 0.40 g of lead per million grams of blood). A value of 0.80 part per million (ppm) is considered to be dangerous. How many grams of lead are contained in 6.0 x 10^3 (six times 10 to the third power)(the amount in an average adult) if the lead content is 0.62 ppm?

2007-09-16 18:29:48 · 4 answers · asked by lil_vicd 2

Find the change in velocity





please help me i am a stupid guy who will never stand on my own i can just rely on smart and above-classed people in this world who will probably get way better careers than me ill do anything for you if we ever meet!

2007-09-16 18:28:46 · 1 answers · asked by a idiot with dreams of wiseman 1

Find the x and y intercepts

f(x) = 9x^2 + 24x + 16

2007-09-16 18:27:32 · 7 answers · asked by Anonymous

Please show work.
- Thanks

2007-09-16 18:22:04 · 1 answers · asked by Nik 1

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2007-09-16 18:21:13 · 8 answers · asked by Anonymous

please provide a written proof explaining how the statement is true.. not a numerical proof or induction. thanks!!

2007-09-16 18:13:48 · 2 answers · asked by paulinatran10 1

7x + 24 = - 21

I dont understand what im doing wrong!!! -

ok, so you want to get the numbers on one side, and the x's on the other -

subtract 24 from both sides, so you get
7x = -45

divide -45 by 7, and you get the wrong answer!!!!!

2007-09-16 18:13:29 · 8 answers · asked by Anonymous

please provide a written proof explaining how the statement is true.. not a numerical proof or induction. thanks!!

2007-09-16 18:11:18 · 4 answers · asked by paulinatran10 1

2007-09-16 17:57:23 · 5 answers · asked by Anonymous

What are the two page numbers?

2007-09-16 17:53:31 · 9 answers · asked by Anonymous

8√x -4

The -4 isn't under the square root sign, only the x is

2007-09-16 17:52:35 · 4 answers · asked by Anonymous

For each subset XcA, Xc f^-1(f(X))

2007-09-16 17:48:36 · 1 answers · asked by bubbula48 1

http://i181.photobucket.com/albums/x85/ctti_3/Untitled-58.jpg

2007-09-16 17:47:52 · 1 answers · asked by gistrm 1

Find the number that is 4/5 of the way from -3 4/5 to 4 1/5

Can someone please explain and give the answer to this problem?

2007-09-16 17:43:01 · 2 answers · asked by scottknguyen 2

1. Set S and a binary operation * on S will be specified. In each case, determine whether * is associative, whether * has an identity element and, if the latter is the case, whether each element of S has an inverse (with regard to *), i.e whether S is a group:
(a) S=3Z, the set of all integers that are multiples of 3, * = ordinary addition of integers
(b) S=Z, a*b=a+b-1

2. A table defines a binary operation * on the set S={a,b,c,d}. Is (s,*) a group? If not why?

If someone could please give me full working out and explinations I would really appreciate it.

Thanks

Don

2007-09-16 17:32:32 · 1 answers · asked by Anonymous

2007-09-16 17:31:31 · 5 answers · asked by Anonymous

2007-09-16 17:16:54 · 2 answers · asked by cwuzzup 2

"Determine whether the given ordered pair satisfies the equation"

x=4; (3,7)

How do you solve this?

2007-09-16 17:15:27 · 7 answers · asked by camel 2

thanks for other help it becoming more clear to me....i was able to eliminate 4 choices only left with two...which of the number is correctly rounded to three sig fig

10.25001 - 10.3 or

1.325- 1.33

lost....

2007-09-16 17:12:36 · 1 answers · asked by free g 1

The Plane through the points (3,-1,2), (8,2,4), and (-1,-2,-3).


***

Also, find the plane through the point (6,3,2) and perpendicular to the vector < -2, 1, 5 >.

2007-09-16 17:10:06 · 2 answers · asked by celes 1

yeah i need help . just click the link and the image will appear .

1. http://img154.imageshack.us/img154/2374/gospelii5.png
2. http://img154.imageshack.us/img154/7184/gossipve0.png
3. http://img154.imageshack.us/img154/4391/inflat10nmd7.png
4. http://img166.imageshack.us/img166/6728/squarefn9.png

if you don't know how this works i'll give you an example :
when captain is spelled out in a shape of a j the answer would be captain hook you get it . so that what we're doing here . i just need these four please help asap ! thanks soooo much !

( it is under math because i got this worksheet from my math class . )

2007-09-16 17:08:43 · 3 answers · asked by there is ME in awesoME 1

did you memorize the answer?? It's -(x+1)

[x^2 -1]/(1-x) can't really be simplified by anything that I leanred and I am in calculus now ...so I just used synthetic division ...and I got -(x+1) ...but should I memorize this ...do most people memorize this solution ...or no?

2007-09-16 17:03:11 · 9 answers · asked by Anonymous

Solve for x in [-pi,pi]: tan(x)-sin(2x)=0

thanks

2007-09-16 16:47:11 · 4 answers · asked by ILuvTaraReid 2

can someone show or tell me how to do this? x^2-x-12/4-x

2007-09-16 16:42:20 · 2 answers · asked by Anonymous

I'm mixed on this question. Since one point could be on infinite many planes... does that apply to five points too?

2007-09-16 16:38:41 · 9 answers · asked by Sai 1

I'm gotten old guys, I need help with my math. Can u help me answer this math problem please?

2007-09-16 16:34:44 · 9 answers · asked by sabur 1

it is asking me to graph the inequality in a coordiante plane.

y=>-x+4

how do i graph that?

plz help me step by step

2007-09-16 16:34:43 · 4 answers · asked by Anonymous

2007-09-16 16:31:54 · 5 answers · asked by yeahyeahyeah 4

Can you help with this? I did this a couple years ago and totally forgot it.

What is the value of S when R=10?

r: 0 2 4 6 8 10
s: 7 11 23 43 71 ?

2007-09-16 16:31:26 · 4 answers · asked by Anonymous