Science & Mathematics - 11 February 2007

2007-02-11 14:45:01 · 4 answers · asked by Toby G 1 in Mathematics

11th term; (x - 3y)^13

A) 16,888,014x^10 y^3
B) -5,629,338x^10 y^3
C) 16,888,014x^3 y^10
D) -5,629,338x^3 y^10

Please explain your answer....

2007-02-11 14:43:11 · 2 answers · asked by Dan 3 in Mathematics

In a certain population the probability that randomly selected subject will have been exposed to a certain allergen and experience a reaction is .60. The probability is .8 that a subject exposed to the allergen will experience an allergic reaction. If a subject is selected at random from this population, what is the probability that he/she will have been exposed to the allergen?

2007-02-11 14:42:57 · 3 answers · asked by p_rob22 1 in Mathematics

I'm doing a project on the principles that Galileo has discovered in the field of physics. I was wondering if I had missed any that anyone knew of. So far I have:
1) his work on pendulums
2) theory of motion and unifrom acceleration
3) work on inertia
4) parabolic fall
Anything else? Also, any ideas for a good model? It can't be a poster or something restating our paper, she's looking for an application or reenactment of one of his experiments.

2007-02-11 14:42:51 · 1 answers · asked by Anonymous in Physics

Solve by elimination...
9x-3y=15
-3x+y=-5

please show work! thanks for answering!

2007-02-11 14:42:38 · 4 answers · asked by Anonymous in Mathematics

integral from 0 to 1/2 of inverse sine of x over the square root of one minus x squared

2007-02-11 14:41:56 · 1 answers · asked by popngirl_14 2 in Mathematics

you pick a flower off the plant that produceed the seed shown on a dicot plant, what is a possible number of petals this flower could have ?
a. 3
b. 6
c. 7
d. 8

2007-02-11 14:39:47 · 2 answers · asked by Tessy 1 in Biology

A major in Biology is general and covers unessary things(ecology...) while Molecular biology is more specific and deals with DNA, genetics and proteins. Which is better for pre-med and why between these two majors?

2007-02-11 14:38:43 · 3 answers · asked by avalentin911 2 in Biology

Need to know the stages and what happens in each stage, what cells/tissue are active in each.

2007-02-11 14:38:26 · 2 answers · asked by Anonymous in Biology

OMFG... Pre-Calculus... HELP?!

I don't want just answers.
Like steps of how to BEGIN would be lovely enough.

2007-02-11 14:38:14 · 3 answers · asked by Anonymous in Mathematics

-3a^2b/35a^5*14a^3b^2/-9b^4

(-3a^2b) (14a^3b^2)
----------*----------
(35a^5 ) (-9b^4)



I can only get so far then I get lost.
-42a^5b^3
------------
-315a^5b^4

now what do I do?

2007-02-11 14:37:29 · 4 answers · asked by Tasha J 1 in Mathematics

2007-02-11 14:37:22 · 1 answers · asked by jOan . 1 in Chemistry

2007-02-11 14:36:18 · 3 answers · asked by jOan . 1 in Chemistry

2007-02-11 14:35:33 · 2 answers · asked by jOan . 1 in Chemistry

you have at least one copy of the dominant allele T


you have two copies of the recessive allele t


you must be male


you are haploid.

2007-02-11 14:35:12 · 4 answers · asked by bluewavekarate 1 in Biology

okay this is a word problem that im having a lot of trouble with. Please do not just give me the answer, please show work and the steps:

An open box with a volume of 144cm^3 can be made by cutting a square of the same size from each corner of a square piece of tin 14 cm on a side and folding up the edges of the tin. What is the lenght of a side of the square that is cut from each corner?

anyone that can give me the best help will be rewarded 10 points. Please help!!!

2007-02-11 14:34:24 · 2 answers · asked by Alexis's Love Potion #9 4 in Mathematics

Pp and Dd


all PpDd


PD and pd


PD, Pd, pD, and pd

2007-02-11 14:34:16 · 3 answers · asked by bluewavekarate 1 in Biology

2007-02-11 14:32:56 · 4 answers · asked by Rachel M 1 in Astronomy & Space

I'm in this class and I DESPERATELY need it. The teacher is really heartless. I bought the book used online and it didn't come with the CD-Rom or access code or password. Does anyone out there have the book that they can give me their access code and password PLEASE?!?! It is the biology book 7th edition by Neil Campbell and Jane Reece. It's the black book with the orange side. I'm not a thief or anything like that. I just really want to pass this class so that I won't fail.

2007-02-11 14:31:40 · 1 answers · asked by nicky3162002 2 in Zoology

(x/(x-5))+1=(5/(x-5))
the problem is set up like this
x over x-5 then +1=5 over x-5
please help

2007-02-11 14:30:31 · 16 answers · asked by Anonymous in Mathematics

(5y^3w^2 + z)(2y^3w^2 + 3z)

2007-02-11 14:30:10 · 4 answers · asked by I can help 1 in Mathematics

probable gamete genotypes

or

possible parental phenotypes

or

possible parental genotypes

or

possible genetic outcomes of a cross.

2007-02-11 14:29:26 · 6 answers · asked by bluewavekarate 1 in Biology

2007-02-11 14:29:19 · 6 answers · asked by papster 3 in Earth Sciences & Geology

2007-02-11 14:28:10 · 1 answers · asked by iotaboss 1 in Geography

(2x - 5y)(x + Y)

2007-02-11 14:27:23 · 9 answers · asked by I can help 1 in Mathematics

2007-02-11 14:27:14 · 19 answers · asked by Anonymous in Mathematics

2007-02-11 14:25:04 · 1 answers · asked by Anonymous in Zoology

In studying the surfaces of solid bodies in the solar system, astronomers have learned that the number of craters (per unit area):

is roughly proportional to the age of the surface we are examining

is greater as you get closer to the Sun

follows no discernable rules or relationships at all

is about the same on every world

is greater as you get further and further from the Sun

2007-02-11 14:24:35 · 2 answers · asked by ast10177 1 in Astronomy & Space

(14y + 8y^2 + y^3 + 12) / (6 + y)

2007-02-11 14:23:22 · 2 answers · asked by I can help 1 in Mathematics

2007-02-11 14:21:59 · 1 answers · asked by da_cris193 3 in Chemistry