Science & Mathematics - 29 November 2006

cant find the answer this problem is called factoring special cases and i need u to work it out and give me the rite answer and u can used the foil method to check it and this is what i got
multiplies of 5: 1, 5, k, k
multiplies of 245:1, 5, 7, 35, 49, 245

greatest common factor: 1
5 (k^2 - 49)
5 (k + 7) (k - 7)

foil method check

5(k+7 ) (k-7 )
5 (k ) (k) - (k) (7) + (k) (7) - (7) (7)

5 (k^2 - 7k + 8k - 49 )
5 (k^2 - 49)
5k^2 -49
is this rite

2006-11-29 12:25:32 · 4 answers · asked by Shante R 1 in Mathematics

K2S+CuSO4
NH4OH+H2C2O4
KOH+NH4Cl
NaC2H3O2+HCL
Na2CrO4+Pb(C2H3O2)2
(NH4)2SO4+NaCl
BiCl3+NaOH
KC2H3O2+CoSO4
Na2Co3+HNO3
ZnBr2+K3PO4

2006-11-29 12:25:31 · 1 answers · asked by Anonymous in Chemistry

2006-11-29 12:25:29 · 3 answers · asked by Anonymous in Biology

I am trying to help my daughter with her homework and I don't know if I'm just tired or what, but I stumped on this one. I am starting to think it's a trick question the teacher threw in. Any help is appreciated, thanks.

2006-11-29 12:25:23 · 4 answers · asked by brittsmom 1 in Mathematics

A plane flies 810 miles from A to B with a bearing of N 75 E. Then it flies 648 miles from B to C with a bearing of N 32 E. Find the straight line distance and bearing from A to C. The bearing are in degrees. Tell me also the measure of the three angles inside the triangle formed, and how you got it. Thank you.

2006-11-29 12:24:36 · 3 answers · asked by Jose G D 2 in Mathematics

2006-11-29 12:24:33 · 7 answers · asked by Anonymous in Engineering

2006-11-29 12:24:19 · 2 answers · asked by Ouch! 2 in Other - Science

2006-11-29 12:22:41 · 10 answers · asked by Anonymous in Biology

i^4n+2=? if n is whole numbers


i = imaginary number
please explain how to do it
thanks

2006-11-29 12:22:13 · 3 answers · asked by garnett12341234 1 in Mathematics

2006-11-29 12:20:54 · 9 answers · asked by Nicole S 1 in Mathematics

___ 214 ___ 225 ____ , I keep seem to figure out which numbers too use.

I thought that it should go this way 213, 214, 224, 225, 226 but I am not sure that this is correct format... Could someone please tell show me how too solve this problem? Thank you for responding in advance....

2006-11-29 12:20:50 · 5 answers · asked by Vicky 6 in Mathematics

Point A(-4,1) is in the standard (x,y) coordinate plane.
What must be the coordinates of point B so that the line x=2 is the perpendicular bisector of AB ?

2006-11-29 12:20:42 · 1 answers · asked by Anonymous in Mathematics

2006-11-29 12:19:47 · 7 answers · asked by wolfmettle 3 in Engineering

2006-11-29 12:19:02 · 9 answers · asked by djread99 1 in Zoology

Can someone give me an equation for torque and explain how to use the equation with a given problem? The whole subject of it is confusing to me and i can't remember how to do the prolems.

Thanks
-Nick

2006-11-29 12:18:43 · 4 answers · asked by ncaafan2 2 in Physics

Yes, I KNOW it's cold there. Don't tell me that. I'm looking for a scientific answer.

If cold air sinks...why is it cold up high? I know that warm air holds more moisture... So that might explain the snow.

This is for a science homework thing. Please help!

2006-11-29 12:18:39 · 3 answers · asked by Chelsea 2 in Weather

2006-11-29 12:16:43 · 7 answers · asked by Anonymous in Biology

2006-11-29 12:16:01 · 10 answers · asked by AnswerWhore 2 in Mathematics

2006-11-29 12:15:13 · 2 answers · asked by Ashley B 1 in Earth Sciences & Geology

2006-11-29 12:15:10 · 5 answers · asked by labradoodledizzle 1 in Other - Science

2006-11-29 12:15:05 · 5 answers · asked by balls 1 in Physics

Please by tonite

2006-11-29 12:14:56 · 4 answers · asked by Kw23 2 in Earth Sciences & Geology

2006-11-29 12:14:00 · 2 answers · asked by Unmortal 1 in Engineering

2006-11-29 12:13:10 · 4 answers · asked by Anonymous in Chemistry

AND most of the things I need for it are ALREADY here at home.

2006-11-29 12:13:07 · 3 answers · asked by Xx_Booty_Shakin_Cheerleader_xX 1 in Other - Science

How do you find the range the mean, median, and mode and set of data? My daughter has this for her Homework and we cant figure this out.

2006-11-29 12:12:50 · 8 answers · asked by Anonymous in Mathematics

I used an ohmmeter on the 200 ohms setting. How would i change the following readings to conductivity since an ohmmeter measures resistance. The readings are .3, .4, .5, .6, .7, .8,.9,.10,.11.


Please tell me what the appropriate conductivity readings are after converting it from resistance. Can you also include what the units will be. THanks. i really appreciate it.

2006-11-29 12:12:10 · 2 answers · asked by Omar H 1 in Physics

2006-11-29 12:11:55 · 8 answers · asked by xanderp007 2 in Earth Sciences & Geology

HELP PLEASE!

2006-11-29 12:10:51 · 5 answers · asked by Tanya :] 4 in Biology

can some one help me find some ways to have a clean air pollution. i need at least two ways. and also can u tell how u can do that.
thanx for everyones help.

2006-11-29 12:10:12 · 3 answers · asked by lorans h 2 in Weather