Science & Mathematics - 1 October 2007

For my grandaughters homework thanks x

2007-10-01 05:53:40 · 8 answers · asked by geri 1 in Botany

2007-10-01 05:52:30 · 5 answers · asked by Starzz_zz 2 in Zoology

Alright, I made a huge mistake taking honors precal and I have a couple questions on how to do questions on my homework that is due tomorrow (I can't consult my book because , just to screw with us, my teacher said she got these problems out of a different book). I don't necessarily need the answers, just some help with how to do them. (can't ask the teacher either, because they are due before school starts)

the first one I am having trouble on...
Graph the function over the interval (-1, 3) state where the function is increasing, decreasing, and constant. Also state any relative minimums or maximums to 2 decimal places.
--I get how to graph and stuff, but does it mean only include increasing/decreasing over the interval or all points?--

second....
find f^-1(x) if f(x) = (2x+1)/(x-1) x does not equal 1
--this is finding the inverse, and I can usually get these with no problem, except I have never done one where it is over an "x" equation. I can't get passed x(y-1) = 2y +1

2007-10-01 05:49:01 · 5 answers · asked by Kremer 4 in Mathematics

3 particles are located in the x-y plane. Particle 1 has a charge Q1=2.0uC and coordinates (0cm,0cm) particle 2 has a charge Q2=-2.0uC and coordinates (3cm,0cm) and particle 3 charge Q3=-3.0uC
and coordinates (0cm,3cm) find
a) magnitud
b) direction of the electric field at coordinates (1.5cm,1.5cm)
C)find the magnitud and d) direction of the force exerted on a fourth particle with charge Q4=3.0uC and coordinates (1.5cm,1.5cm)

2007-10-01 05:48:20 · 1 answers · asked by azulita 3 in Physics

3x + 3 = 2x + 2
Please show your work

2007-10-01 05:48:11 · 5 answers · asked by twhoodoo 2 in Mathematics

How does this happen ?

For the last couple of hours we've had heavy clouds . Heavy clouds / Storm threatening clouds . Over an hour ago I checked the radar and nothing was on the map . I couldn't believe it then , but thought maybe these clouds had just formed and the radar hadn't had the chance to catch-up yet . But now that it's raining I checked again ,. . . . and still nothing on the radar . ZERO !!

How Can This Happen ?

2007-10-01 05:45:10 · 8 answers · asked by Anonymous in Weather

2007-10-01 05:44:41 · 2 answers · asked by m s 1 in Astronomy & Space

2007-10-01 05:39:16 · 7 answers · asked by Anonymous in Mathematics

2007-10-01 05:38:23 · 5 answers · asked by Anonymous in Mathematics

hi, i am doing a debate on Eugenics in science class. I have to be on the con side of genetic screaning of embryos to test them for diseases. Since i am debating cons, i have to come up with points (and ots of facts and evidence to support these points) against screaning emryos for diseases. It would be great if you ahve any points, and or any facts. If you ahve websights and sources that ould also be great for me to check out.

2007-10-01 05:33:14 · 2 answers · asked by Anonymous in Biology

http://www.fosterandpartners.com/Projects/1613/Default.aspx

2007-10-01 05:33:01 · 3 answers · asked by B 4 in Astronomy & Space

2007-10-01 05:29:36 · 5 answers · asked by Anonymous in Physics

2007-10-01 05:28:57 · 3 answers · asked by Anonymous in Physics

Every morning my bedroom is flooded with light that even the curtains can't completely keep out. This got me to thinking - if the sun is so strong, why isn't it also sunny in space?

2007-10-01 05:28:38 · 10 answers · asked by Crystal D 2 in Astronomy & Space

what is the highest mountain on earth? what is it's elevation in feet? thank you!

2007-10-01 05:28:03 · 6 answers · asked by Anonymous in Geography

I need homework help....

Indicate which of the following physics symbols denote units and which denote variables or quantities.

C
(italic) c
(italic) C
(italic) t
T
(italic) T

2007-10-01 05:24:27 · 1 answers · asked by Anonymous in Physics

I heard there so big and far away you can never get close to one.

2007-10-01 05:23:07 · 5 answers · asked by Anonymous in Astronomy & Space

solve and show the theory now

2007-10-01 05:21:47 · 3 answers · asked by Anonymous in Mathematics

2007-10-01 05:19:36 · 5 answers · asked by Shyam 1 in Mathematics

2007-10-01 05:18:43 · 6 answers · asked by Shyam 1 in Mathematics

2007-10-01 05:17:32 · 5 answers · asked by Shyam 1 in Mathematics

Yet they do function. As a eurkaryotic cells develop, they begin to compartmentalize and form organells, which allow them to perform specialized fuctions. what are 2 cellular structures or organells that provide unique biological functions for the cell and describe them

2007-10-01 05:16:42 · 1 answers · asked by damigurl05 1 in Biology

2007-10-01 05:16:21 · 12 answers · asked by Shyam 1 in Mathematics

Y = x^5

1)Find the slope of the tangent line to the curve at the point (-1, -1). The slope is?

--> I was able to get 5, which is correct

2) Find the equation of the tangent line in part 1.The tangent line is y =

--> I am having difficulty with this part.

2007-10-01 05:16:05 · 3 answers · asked by Ar J 2 in Mathematics

2007-10-01 05:15:21 · 10 answers · asked by Shyam 1 in Mathematics

I know they both have to do with the amount of water in the air, but I suspect that they are different readings, and pertain to different conditions.

2007-10-01 05:11:46 · 9 answers · asked by yp_bob_milwaukee 1 in Weather

can you guys help me with the last question of my homework?

solve the following. find all roots by completing the square.

x^2 - (i)x + 5 = 0

the i is an imaginary number.

this is the only problem i couldn't figure out. :( thanks!

2007-10-01 05:11:26 · 2 answers · asked by Jared H 1 in Mathematics

what are 2 similarities and 2 differences btw. prokaryotic and eukaryotic cells

2007-10-01 05:09:44 · 1 answers · asked by damigurl05 1 in Biology

click the link to see the question and answers

http://tinypic.com/view.php?pic=2nvgh5&s=2

2007-10-01 05:06:46 · 2 answers · asked by Anonymous in Mathematics

2007-10-01 05:05:31 · 4 answers · asked by Kristy K 2 in Mathematics