Mathematics - 4 November 2007

find the equation of the altitude from A to BC
A(11,12)
B(7,2)
C(13,-6)

2007-11-04 07:55:17 · 3 answers · asked by Anonymous

would it be ap^2- a^2p

the ^2 means squared, so a times p squared minus a squared times p.

is this right?


also how would i simplify it?

2007-11-04 07:55:11 · 9 answers · asked by ♥ 2

it doesn't make sense to me, please help

2007-11-04 07:51:20 · 5 answers · asked by Anonymous

the ^ means that it is squared please help how do you solve it by factoring

2007-11-04 07:45:26 · 2 answers · asked by Anonymous

46.) 3.8y + -4.7 = 3.8y + 17

No Solution?

2007-11-04 07:39:53 · 6 answers · asked by Anonymous

How do you reduce this

2007-11-04 07:39:33 · 6 answers · asked by Anonymous

Can someone answer this please?

2007-11-04 07:36:15 · 3 answers · asked by dk 1

Well, at least i think its tough... i have NO idea where to even begin:

(e^(arctan(y)))dy / (1+y^2)

Thanks for the help

2007-11-04 07:26:09 · 2 answers · asked by Anonymous

2007-11-04 07:10:31 · 6 answers · asked by Anonymous

the population of the world in 1987 was 5 billion and the relative growth rate was estimated at 2 percent per year. assuming that the world population follows an exponential growth model, find the projected world population in 1995.
________________ billion

2007-11-04 07:09:49 · 6 answers · asked by star baller 360 5

Help...what is graphing inequalities in 1 variable and graphing lines and 2 variable inequalities ? If you could maybe give me an example. I am really lost..

2007-11-04 07:07:16 · 2 answers · asked by Jenniefrizzzle 4

2007-11-04 07:05:26 · 5 answers · asked by Anonymous

i don't know if i did this problem right. can someone help me w/ it?
log (little 3 at bottom) (2x+1)=4

is the answer 40? cause thats what i got.

2007-11-04 07:02:27 · 8 answers · asked by Hannah B 1

What steps would be taken to solve this for an answer in scientific notation without using a calculator?

2007-11-04 06:59:39 · 3 answers · asked by ian02766 1

If, for some particular angle θ, sin θ < 0 and cos θ > 0, in what quadrant must θ lie? What is the sign of tan θ?

2007-11-04 06:52:45 · 2 answers · asked by Brick Top 1

2007-11-04 06:43:54 · 7 answers · asked by ian02766 1

A plane took 3 hours 15 minutes to return to Spain.
The length of this journey was 2350km.
Calculate the average speed of the plane ins

1. Kilometres per hour,
2350/3.25 = 723
(how come it's 3.25?)

2007-11-04 06:43:09 · 6 answers · asked by Anonymous

i would appreciate it if you would tell me how u got the number in a simple way as possible. thanks!
also, this is from a pre-calc honors class

2007-11-04 06:38:16 · 2 answers · asked by Pinkie09 1

I need to prove that

(1+secx)/(sinx +tanx) = csc x

and that

(1-cosx)/(cosx) = (tan^2 x)/(secx + 1)

These are the only two that I have left and I cannot figure them out! If you could please help me that would be great. Thanks!

2007-11-04 06:36:35 · 3 answers · asked by Anonymous

If there is an equation available that would be great!

2007-11-04 06:34:10 · 6 answers · asked by Anonymous

2007-11-04 06:30:57 · 3 answers · asked by Jeff R 1

2007-11-04 06:26:38 · 3 answers · asked by Anonymous

2007-11-04 06:25:00 · 3 answers · asked by Anonymous

Here is the problem: http://i20.tinypic.com/316vui9.jpg
a. 0°
b. 45°, 135°
c. 90°
d. 0°, 90°
Thanks for the help!

2007-11-04 06:20:59 · 1 answers · asked by sillyboys_trucksare4girls 2

Find the distance between (–3, –2) and (1, 4). Express your answer in simplified radical form.

2007-11-04 06:19:20 · 2 answers · asked by meme 1

Can anyone help me to evaluate the limit using Hopital's Rule of [ (e^(2x) + e^(-2x) - 2) / 1-cos(pi x) ] as x approaches 0

please show work

2007-11-04 06:06:41 · 3 answers · asked by Michael 1

-there is a bus with 7 Girls
-each girl carries 7 bags
-inside each bag there is 7 cats
-every cat has 7 kittens
-all cats have 4 legs each

how many legs are in the bus?

2007-11-04 05:59:20 · 12 answers · asked by Jackie 1

i'm having a lot of trouble graphing this!
i know the vertex is (10, 1) since it follow the y=a|x-h| +k formula but i dont know how to find two other points to use to make my graph.
when i tried substituting to find the y intercept i got this :
y= 2 | 2 x 0 + 10| +1
y = 2 |10| +1
y= 21
is this right?
if so, when i tried substituting to find what y would be if the x=6, i got y= 45.
this doesnt make sense when i grpah it because my graph goes up then down.
can someone explain to me how to find two points?

2007-11-04 05:56:20 · 3 answers · asked by ♥ 2

2007-11-04 05:55:28 · 4 answers · asked by haj a 1

for values near a, provided that the following 3 conditions are satisfied.
f(a)=p(a)
f'(a)=p"(a)
f"(a)=p"(a)
A.) For values of x near a=0, find a quadratic polynomial, p(x)=Ax^2+Bx+C, that is a quadratic approximation of the function f(x)=e^-x^2
B.) Use the function p to approximate the value of f at x=1/2 and x=2

2007-11-04 05:54:49 · 1 answers · asked by nickesha t 2