Mathematics - 11 October 2006

how do i do this

2006-10-11 10:49:42 · 4 answers · asked by sean c 1

f(x)=x^2 - (27/x^2)
Second derivative gives a point of inflexion at (3,6). dy/dx is positive after 0. Without a change in concavity how can there exist a point of inflexion?

2006-10-11 10:47:42 · 4 answers · asked by shineitallaround 1

A rectangle garden w/ dimensions 18 x 24 m is to have a side walk of uniform width place completely around the inside of its border in such a way that the area of the remaining garden is 216 sq. m. How wide is the side?

Two planes start from Baguio at the same time and fly in opposite direction, one averaging a speed of 40mi/hr. greater than the other. If they are 2000 mi. apart after 5 hours, find their average speed.

2006-10-11 10:43:47 · 3 answers · asked by Anonymous

2006-10-11 10:36:40 · 4 answers · asked by Faiyaz S 1

A point on the line y=3x-4 has an x-coordinate of 50.
What is the y - coordinate of this point?

A point on the line y=3x-4 has a y- coordinate of 50.
What is the x-coordinate of this point?

2006-10-11 10:32:48 · 6 answers · asked by skoti2k 1

2006-10-11 10:29:38 · 8 answers · asked by garibay0822 1

Three ordered pair solutions for y = x/2??

2006-10-11 10:28:38 · 5 answers · asked by britiani j 1

Using x and y, what is the translation for "the ordinate is two more than the abscissa"?

2006-10-11 10:27:40 · 3 answers · asked by britiani j 1

If P(x) is a polynomial and a real number such that P(a)=0. Then P(x) is a multiple of x - a, i.e. there exists a polynomial Q(x) such that P(x) = Q(x) (x - a).

2006-10-11 10:24:41 · 4 answers · asked by ttybrs10 1

What is the equation of a line that passes through (2, 2) and (2, - 3)?

2006-10-11 10:24:28 · 4 answers · asked by britiani j 1

I have to solve this by graphing:
3x-2y=6, and
y=3
I know what to do for the first part, but I'm not sure how to graph y=3. I am using the set up where it looks similar to this:
x | y < where you fill in the blanks, sorta.
|
|
|

Where is the x? How do I graph it? I will reply if you need more infromation. thank you!

2006-10-11 10:02:37 · 10 answers · asked by POOF 5

please, i need help with my homework. i have questions like these under, but i can not understand them. plzz help!!1

how do i evaluate the discriminant of these 2 problems?
and how do i tell how many salutions has, or whether the salutions are real or imaginary???

(2) = squere

y = 9x(2) - 24x

y = 4x(2) -3x +1

2006-10-11 10:01:41 · 4 answers · asked by Anonymous

2006-10-11 09:59:08 · 4 answers · asked by twinkie 1

2006-10-11 09:58:08 · 2 answers · asked by twinkie 1

that seven divides 5^(2n)+3*2^(5n-2)
dont use induction
use congruence

2006-10-11 09:55:58 · 3 answers · asked by Anonymous

2006-10-11 09:55:51 · 6 answers · asked by twinkie 1

2+1/a all over 2/a-a

2006-10-11 09:51:06 · 3 answers · asked by Anonymous

Can anyone please help with the following problem? We are studing solving exponential equations.

2^(3x+1) = 3^9x-2)

2006-10-11 09:48:36 · 7 answers · asked by ctjarig 1

2006-10-11 09:46:02 · 2 answers · asked by marpiesharker 1

find the slope of the line passing through the points (-7,-4) and (-1, -10).

2006-10-11 09:44:40 · 6 answers · asked by Malina 1

The present ages of a husband and wife are in the ratio of seven to six. Five years ago the ratio was six to five. What are their ages now?

The choices are:
h: 35 yrs and w: 30 yrs
h: 41 yrs and w: 35 yrs
h: 49 yrs and w: 42 yrs
h: 56 yrs and w: 49 yrs

2006-10-11 09:43:40 · 6 answers · asked by Anonymous

It says to find the height of a trapozoid with bases equal to 10ft and 18ft, I don't know to find the height though!
Can anyone give me a formula?

2006-10-11 09:41:26 · 7 answers · asked by Anonymous

y^2-y+5/y+4

2006-10-11 09:40:27 · 3 answers · asked by Anonymous

2006-10-11 09:37:35 · 5 answers · asked by dawn h 1

can someone explain to me in depth how to preform the combined gas laws i dont also know what p1 v1 = p2 v2
-------- -------
t1 t2

2006-10-11 09:37:12 · 2 answers · asked by sdrebo131 1

this is another math problem my child is trying to answere. can you help?

2006-10-11 09:36:55 · 8 answers · asked by G'smom 1

(x*2+5x-30) + (x-3)=
thanks

2006-10-11 09:30:56 · 6 answers · asked by lovinmymatt 2

2006-10-11 09:29:38 · 9 answers · asked by Young Mother 1

x+2 divide 3x*2+10x+15=
thanks for any help

2006-10-11 09:29:10 · 2 answers · asked by lovinmymatt 2

A ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. When will the ball reach a height of 80 m?

2006-10-11 09:24:35 · 8 answers · asked by Anonymous