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#51 Help Me ! » Correct » 2006-11-08 03:15:00
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- Replies: 7
Find the distance between the point (3,1) and the line y = x - 4
i did like this :
y = -2x + b < equation
1 = -2(2) + b < use (3,1)
1 = -6 + b < add 6
7 = b
y = -2x + 7 < completed equation
THAN
x - 4 = -2x + 7 < substitution
add 4 both sides
x = -2 + 11
3x = -2 + 11
3x = 9
x = 9/3 < solved for x
THAN
y = -2 (9/3) + 7
y = -6 + 7
y = 1 < solved for y
THAN distance formula
D = sqrt( ( (x2 - x1)^2 + (y2 - y1)^2 )
(3,1) and (3,1)
D = sqrt ( (3 - 3)^2 + (1 - 1)^2 )
D = sqrt( 0 + 0)
D = 0 < solved
answer is zero
correct?
#52 Help Me ! » evaluate » 2006-11-07 12:35:23
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- Replies: 2
very long.......help
4
-- log8 32 - log8 ( x + 2) = log8 2
5
#53 Help Me ! » measure » 2006-11-07 12:30:37
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- Replies: 1
find the measure of an angle if five times the complement of this angle is 150degrees greater than the supplement of the angle.
ok this question came form my lil sis.....meaning cousin
she said.
angle * 5 = 150
150 / 5 = 30
30 equals angle........
#54 Re: Help Me ! » yes no » 2006-11-06 05:33:11
oh i wrote 3 instead of -3
thanks Saudiboy 
#55 Re: Dark Discussions at Cafe Infinity » Who is the Fan Of Cricket?? » 2006-11-06 05:01:43
Pakistan Zindabad.....
No One
#56 Help Me ! » yes no » 2006-11-06 03:27:52
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- Replies: 6
factor x^2 - 3x + 3 over the set of complex numbers.
use quadratic formula
x^2 - 3x + 3 = 0
a = x^2
b = 3x
c = 3
-3 +- sqrt( 3^2 - 4 * 1 * 3 )
x = ---------------------------------
2 (1)
-3 +- sqrt(9 - 12)
x= ----------------------
2
-3 +- sqrt( -3)
x = -----------------
2
-3 +- sqrt( 1 (-3) )
x = ----------------------
2
-3 +- 1 sqrt(-3)
x = ------------------
2
x = -1.5 +- 0.5 sqrt(-3)
#57 Re: Help Me ! » tuv » 2006-11-06 02:54:06
thank you very much
#58 Re: Dark Discussions at Cafe Infinity » Who is the Fan Of Cricket?? » 2006-11-06 02:45:29
its almost the same thing as baseball....ALMOST
can you tell me the basics of cricket i am so clueless .
#59 Help Me ! » tuv » 2006-11-05 04:21:05
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- Replies: 2
Simplify :
sqrt( t^9 u^10 v^5 )
#60 Re: Dark Discussions at Cafe Infinity » Who is the Fan Of Cricket?? » 2006-11-05 04:18:04
i like cricket but i dont get it i mean dont understand it much.
i so liked imran khan
#61 Re: Help Me ! » simplify......Help » 2006-11-02 04:38:18
x
---------
x + x
------
c + x
---
b
then
x
---------
x + x
--------
cb + x
---------
b
then
x x
------------------------------------- = ---------------
x b x + xb
--------- ------- --------
x + 1 Times cb + x cb + x
------- ----------
cb + x b
---------- --------
b cb + x
then
x
-----------------
x(cb + x) + xb
------------------
cb + x
then
x cb + x x(cb+x)
------------------ Times --------------- = ---------------- eqauls answer
1 x(cb+x)+xb x(cb+x)+xb
------------------- -----------------
x(cb + x) + xb cb + x
------------------- ----------------
cb + x x(cb+x)+xb
#62 Re: Introductions » hi » 2006-11-02 03:03:46
oh ok.....well devante it is
#63 Re: Introductions » hi everybody,, » 2006-11-02 03:02:46
SA nothing. hows life there. i never been there just interested? hows school?
i am also 18 and going to highschool...i bet over there it is very hard math , right?
#64 Re: Help Me ! » arranged » 2006-11-02 03:00:57
thank you very much.
i understood ricky's way but your way seems direct , i understood a bit more.
thank you both
#65 Re: Help Me ! » sin cos » 2006-11-01 11:17:16
so answer is the total is
1.068934976
so final answer is 1.07
#66 Re: Help Me ! » sin cos » 2006-11-01 11:08:16
oh yeah thanks
i had my calculaor on complx instead of comp
#67 Re: Help Me ! » sin cos » 2006-11-01 10:51:21
if i do that
than my answer comes out to
4.086538401 x10 -03
on the calculator
#68 Re: Help Me ! » arranged » 2006-11-01 10:44:59
success
uccesss
ccesssu
cesssuc
esssucc
sssucce
ssucces
#69 Re: Help Me ! » arranged » 2006-11-01 10:37:47
ok this one
How many distinguishable permutations can be formed in the letters of the word " success"?
i got 7
#70 Help Me ! » sin cos » 2006-11-01 10:16:30
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- Replies: 7
Evaluate:
7pi 11pi
sin^2 ---- + cos^2 -----
6 6
7pi = 21.99114858 divided by 6 > 3.665191429
11pi = 34.55751919 divided by 6 > 5.759586532
sin^2 3.665191429 > isssssssss
cos^2 5.759586532 > isssssssss
HELP
do u have to do
sin 3.665191429 ^ 2 like this?
#71 Re: Introductions » hi » 2006-11-01 09:21:04
Yeah, that is my real name (Devanté). Pronounced "Da-Van-Tay".
Or, "Dev-An-Tay",
hmm nice name shall i call u Dev instead
#72 Re: Guestbook » math » 2006-11-01 09:20:00
lol.......many
#73 Re: Introductions » hi everybody,, » 2006-11-01 09:06:23
your welcome saudi
SA meaning. Saudia Arabia....SA get it
#74 Help Me ! » solve » 2006-11-01 05:21:55
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- Replies: 1
solve the following equation if
0degrees < θ < 360degrees
-
sin θ = - (sqrt(3) / 2)
Edited to turn 0 into θ
#75 Re: Introductions » hi everybody,, » 2006-11-01 05:20:23
hii..
I'm a new member to the forum..
my name's Saad and I'm from Saudi ArabiaI'm 18.
I hope to learn a lot .
thank you,,:):)
hello salaam welcome to the forum hope you enjoy your time and get the help that you are looking for. takecare
thats good your for SA. how is it there?
ok takecare