Mathematics - 6 September 2007

Please help me solve this by factoring..

2x^2 + 3x - 2 = 0

I don't know why I'm having such a hard time with it.

2007-09-06 14:27:39 · 4 answers · asked by Anonymous

Is Algebra I just Algebra and is Adv. Algebra Algebra II? Are they the same classes but with different names, or just a different class entirely?

2007-09-06 14:26:21 · 3 answers · asked by yellowducks 1

2007-09-06 14:25:44 · 2 answers · asked by spanishfly_100 1

idk how to do 1/2x+2/3yhen x=18 and y=7.

plz show me how to do step by step...ty

2007-09-06 14:25:19 · 1 answers · asked by jh j 1

28 pecks= how may blushes

1) 4
2) 8
3) 7
4) none of the above

and if you show me how to do it it will be very helpful

2007-09-06 14:22:38 · 5 answers · asked by lolo bear 2

I'm trying to find the equation of a plane containing the point (1,2,1) and perpendicular to the planes ( x + y = 2) and (2x + y - z = 1)

I think the answer should be -(x-1) + (y - 2) - (z+) = 0 but the answer in the book reverses the signs so that
(x - 1) - (y-2) - (z+1) = 0

I have no idea why?
thanks

2007-09-06 14:22:32 · 1 answers · asked by snoboarder2k6 3

A clock stikes every hour-once at 1:00, twice at 2:00, etc. If it takes the clock 8 seconds to strike 5:00, how long will it take to strike 9:00?

2007-09-06 14:13:00 · 2 answers · asked by Chris L 1

x^2-y=0 ????
HELP!!!!!

2007-09-06 14:09:34 · 1 answers · asked by Catherine D 1

Samantha deposits $300 in an account that earns an annual interest rate of 2.5%.After 9 months, she computes the simple interest.

2007-09-06 14:05:09 · 7 answers · asked by Anonymous

2007-09-06 14:03:51 · 3 answers · asked by nanacachetez 1

1.- x(8 + x)
2. a(a - 2)
3. (3 + y)y
4. 4(10 - 3x)
5. (16 + 3t)t
6.(4s + 3)(-5)

im lost...

2007-09-06 14:01:33 · 16 answers · asked by Anonymous

ok so i got the answer but can someone help me explain it please!
On a flight from Sydney, Nova Scotia to Saskatoon, Sask. the plane averaged 760km/hr. On the return trip from Saskatoon to Sydney, the same plane averaged 904km/hr. The distance from Sydney to Saskatoon is approximately 4112km. How much longer was the trip West than the trip East? How long was each flight in minutes?
ANSWER=Time = 4112/760 = 5.4 hrs ; 5.4hrs * 60 = 324 mins
Time = 4112/904 = 4.55 hrs = 273 mins

Sydney to Saskatoon = 324 mins
Saskatoon to Sydney = 273 mins
The trip West is 51 minutes longer

2007-09-06 14:01:05 · 3 answers · asked by sweethoney9079 4

1, 5, 13....

thanks!! =)

2007-09-06 13:55:11 · 15 answers · asked by :) 5

make a counterexample for this conjecture plz??

2007-09-06 13:53:22 · 7 answers · asked by Anonymous

help me please

2007-09-06 13:51:57 · 7 answers · asked by camille E 1

2007-09-06 13:42:31 · 13 answers · asked by Nikki Monique 2

tank u for all da help
i was able to do da rest of my hw wifout any problems ^ ^
but i jus hav two more problems i got stuck on ><
check if its right plz ^ ^

5x - 2 (3 - x ) = - ( 4 - x )
5x - 6 - 2x = 4 - x
( 5x - 2x ? )
3x - 6 = 4 - x
+ x + x
4x - 6 = 4
+ 6 + 6
4x = 10
divide by 4
x = 10 / 4

it doesnt look rite to me >:[

andd....

1.5 ( 4x - 2 ) = 2 ( 0.5x - 3.5 )
6x - 3 = 1x - 7
- 1x - 1x
5x - 3 = - 7
+ 3 +3
5x = 4
divide by 5
x = 4/5?
ahh dat dont look rite either><

2007-09-06 13:39:24 · 4 answers · asked by Anonymous

2007-09-06 13:38:46 · 11 answers · asked by GVG 1

2007-09-06 13:34:47 · 8 answers · asked by cmj 2

2007-09-06 13:33:25 · 2 answers · asked by cmj 2

2007-09-06 13:31:10 · 4 answers · asked by Anonymous

Example. somehtign like... -3.4 or 4 + Pi, pleas help me, i have a test tomorrow, and i want to understand this stuff. my textbook isnt much help.

2007-09-06 13:30:17 · 11 answers · asked by Anonymous

0.020kg...why would this have 2 significant digits instead of one...

2007-09-06 13:25:15 · 8 answers · asked by Steven V 2

Yes, I know the answer is 7 and 8, or -7 and -8, but I don't know how to do the work. This is where I get stuck...

x^2 + (x+1)^2 = 113

x^2 + x^2 +1 = 113

This SHOULD involve polynomial equations....

2007-09-06 13:22:04 · 4 answers · asked by poxatu 1

6 +4
--------------
2 to the 4th power + 4 divided by two



sorry im not sure how to make exponats or divison signs on the computer if you know how please tell me

2007-09-06 13:13:46 · 6 answers · asked by Anonymous

what does a prime number mean in math? im helping my brother with hw...

2007-09-06 13:13:10 · 7 answers · asked by Anonymous

2007-09-06 13:12:31 · 2 answers · asked by Harjizzle 1

What is 2/15 as a decimal? SHOW YOUR WORK PLEASE!

2007-09-06 13:11:08 · 7 answers · asked by 1HTOWNGURL 1

Like I of 3R_ it would be 3._ How would u do that?

2007-09-06 13:07:17 · 6 answers · asked by Hannah 1

I have no idea what the term period means in this question.

2007-09-06 13:06:50 · 4 answers · asked by Anonymous