Science & Mathematics - 11 January 2007

2007-01-11 16:03:30 · 4 answers · asked by Anonymous in Medicine

this question,seriously it just wastes yours & my time if u write this long paragraph about how I should do my own h.w.. I have done the last 27 problems & have a few left unfortunately I missed a day & the last couple of problems had to do w/ that,so w/ that being said this is a factoring assgn. It is in standard form,if you can explain how u got the answer it would be appreciated but I wont complain if you dont its 10:40 Im tired & just wanna finish my homework if I still need help I can ask the teacher in class but I do need to finish it tonight. so I will show u one I did so u know what form to put the answer in.
ex.3x^2+54+243 ( 3x + 22 ) ( x + 9 ) the numbers in the parenthesis is the answer,Im sure you know that : )
problems follow- 1.112a^2 - 168a+ 63 - I should know how to do this but the numbers are so large I've been trying for forever.
2.) x^2 + 19 + 88 =0 3.)8x^2 - 6x -5 =0
4.)9m^2 - 30 + 25 =0 5.) 40a^2+4a=0
6.)x^2+9x=- 20 7.) 5p2 -25 = 4p^2 +24

2007-01-11 16:02:01 · 8 answers · asked by Rockell 3 in Mathematics

Been scratchin' my head about that one for a while . . .

2007-01-11 16:00:33 · 3 answers · asked by bman99ss 1 in Astronomy & Space

Penguins and knees

2007-01-11 15:59:45 · 18 answers · asked by Matthew S 3 in Zoology

When they are usually found in cold places?

2007-01-11 15:58:33 · 3 answers · asked by cappy619@sbcglobal.net 1 in Biology

1) If an object is launched at the same velocity 2 times: one at 30 degrees and one at 33, which one woudl go further?

2) the maximum height of a fly ball is 20m. How much time does the fielder have run to the predicted position of the ball for the catch?

2007-01-11 15:57:39 · 3 answers · asked by billf39 2 in Physics

Why is it necessary that pollen grains and ovules (eggs) contain only half the proper amount of DNA?

2007-01-11 15:57:26 · 4 answers · asked by Sarah S 3 in Biology

2007-01-11 15:57:26 · 12 answers · asked by RICK 1 in Weather

(2x+5)=11 as lim approaches 3

2007-01-11 15:56:23 · 4 answers · asked by unknown u 1 in Mathematics

1 - 4y - 9y < 79 equation help?

2007-01-11 15:55:52 · 8 answers · asked by soul2true 1 in Mathematics

2007-01-11 15:55:27 · 9 answers · asked by Anonymous in Chemistry

2007-01-11 15:55:12 · 7 answers · asked by cutiegrul101 1 in Geography

question: jordan answered all of the questions on a 20-question test. A score on the test is computed by adding 5 points for every correct answer and subtracting 1 point for every wrong answer. If Jordan's score was 82, how many questions did he answer correctly??

please help..so lost.
show procedure pleaseeeeee.
thank you =]

2007-01-11 15:54:27 · 10 answers · asked by BUM 2 in Mathematics

guess

2007-01-11 15:53:22 · 11 answers · asked by Anonymous in Astronomy & Space

I know that the troposphere has the most density and the stratosphere has the least density now i just need to know the density of mesosphere and thermosphere.

2007-01-11 15:51:48 · 2 answers · asked by divajester6786 1 in Earth Sciences & Geology

2007-01-11 15:49:03 · 2 answers · asked by Anonymous in Chemistry

5m + 9 = 3 (m-5) +7

2007-01-11 15:48:30 · 9 answers · asked by Jennifer 1 in Mathematics

A. 2x^2 - 6 = ( 2x+ 3)(x - 2)
B. 2x^2 + x-6 = (2x - 2) (x + 3)
C. 2x^2 - 11x - 6 = (2x + 1) ( x - 6)
D. 2x^2 +11x - 6 = (2x - 1) (x +6)

" - " This means subtraction.

2007-01-11 15:48:11 · 8 answers · asked by Lizzie 5 in Mathematics

2007-01-11 15:47:11 · 2 answers · asked by tracy 2 in Chemistry

2007-01-11 15:47:09 · 3 answers · asked by kay 1 in Biology

square root x+1 all over x-4 as lim approaches 3

2007-01-11 15:46:51 · 3 answers · asked by unknown u 1 in Mathematics

if a quadratic equation S=ap^2+bp+c and, S=100 and P=29.95 on the first line, S=70 and P=39.95 on the second, and S=50 and P=49.95 on the third, how do I find the value of a, b and c? I have tried everything from matrices to elimination, and I still get the wrong answer, please help

2007-01-11 15:46:49 · 3 answers · asked by Anonymous in Mathematics

THEN HOW IS IT FORMED

2007-01-11 15:45:20 · 2 answers · asked by HARITHA SREE 1 in Astronomy & Space

2007-01-11 15:44:28 · 4 answers · asked by Josh G 1 in Chemistry

it about circle

2007-01-11 15:44:01 · 2 answers · asked by Leox 1 in Mathematics

i dont have time to explain much but im trying to figure out thing about gaining electrons and losing them.like...

Element:Aluminum
Electrons in Outer Level:3
Charge on Ion: ? <----- thats what i wanna know.how can i do it?

another one...

Element:Magnesium
Electrons in Outer Level:2
Charge on Ion: ?

By the way,these give up electrons when they form compounds.
Now, i need help that gain electrons when they form compunds...

Chlorine
Electrons in outer level:7
charge in ion:?

and so on.
can anyone help me how to figure it out with the rest? thanx

2007-01-11 15:42:54 · 3 answers · asked by Wilson 1 in Chemistry

2007-01-11 15:41:13 · 8 answers · asked by styles4u 4 in Mathematics

{2y^4√x/a^4}

2007-01-11 15:40:40 · 2 answers · asked by styles4u 4 in Mathematics

Are they? What are some of the inorganic compounds?

2007-01-11 15:39:03 · 4 answers · asked by Anonymous in Chemistry

With all the news stories telling the same story over and over, I would like to know how long it takes for the comet to take a trip around the sun. My guess is every 200-1000 years. Does anyone have an official estimate?

2007-01-11 15:38:06 · 3 answers · asked by Jeffrey B 2 in Astronomy & Space