Science & Mathematics - 9 February 2007

A couple plan to have exactly three children.
This is the sample space: Sample Space: {BBB,BBG,BGG,GGG}

What is Find the probability that the family has at least two girls

2007-02-09 04:27:07 · 5 answers · asked by Anonymous in Mathematics

A record of travel along a straight path is as follows.


1. Start from rest with constant acceleration of 2.27 m/s2 for 16.0 s.
2. Maintain a constant velocity for the next 1.75 min.
3. Apply a constant negative acceleration of -9.82 m/s2 for 3.70 s.



(a) What was the total displacement for the trip?

(b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip?

2007-02-09 04:23:57 · 2 answers · asked by Anonymous in Mathematics

A car starts from rest and travels for 5.0 s with a uniform acceleration of +2.7 m/s2. The driver then applies the brakes, causing a uniform acceleration of -3.0 m/s2. If the brakes are applied for 2.0 s, determine each of the following.

(a) How fast is the car going at the end of the braking period?

(b) How far has it gone?

2007-02-09 04:22:54 · 1 answers · asked by Anonymous in Physics

a. 39ft 2nd power
b. 78ft 2nd power
c. 19ft 2nd power
or d. 19ft 2nd power.

I think it is B. 78ft 2nd power. Am I right?

2007-02-09 04:22:01 · 11 answers · asked by beach_babe 1 in Mathematics

who died in the line of duty?

2007-02-09 04:21:32 · 10 answers · asked by baby got blue eyes 2 in Astronomy & Space

I think it is 28 and 33. Am I right?

2007-02-09 04:19:49 · 8 answers · asked by beach_babe 1 in Mathematics

There is a blackbird sitting outside my window on a branch. I feel rather sorry for him. I wonder if the snow affects them very much?

2007-02-09 04:18:33 · 12 answers · asked by Anonymous in Zoology

Just want to know if I am doing this correctlly. My choices are: 25" to 2nd power, 20" to 2nd power, 10" to 2nd power or 15" to 2nd power. I believe it is 10" to 2nd power.. am I correct? It has been years since i've had to do this!

2007-02-09 04:18:25 · 10 answers · asked by beach_babe 1 in Mathematics

2007-02-09 04:17:45 · 25 answers · asked by Anonymous in Mathematics

2007-02-09 04:15:49 · 7 answers · asked by ns5 u 1 in Chemistry

2007-02-09 04:15:08 · 7 answers · asked by jwood 1 in Biology

My 92 year old mother has a bad cold and has to drink lactaid milk with her other medications. However, I know that milk causes mucus. Someone has told me that lactaid does not. I just don't see how that can be. At any rate, she has to drink 3 glasses a day. Does anyone know for sure? Please help, as I have asked this question under 2 different catagories today and have had no luck at all. Thanx!

2007-02-09 04:13:12 · 2 answers · asked by laurelf 3 in Medicine

I don't even know if this is possible, but I have the following fraction:

(100K) / (x^2 + (25 + a)x + (25a + 100K)

I need it to look like this:

K / (x^2 + Bx + K)

where K and B can be any combination of variables. The difficulty is that I can't have a scaling factor outside of the fraction. I already got that far:

(1/(1 + .25a)) * ( (100K + 25a) / (x^2 + (25 + a)x + (25a + 100K))

2007-02-09 04:12:45 · 3 answers · asked by Sean H 2 in Mathematics

Is for this exercise to give you an idea.

http://archives.math.utk.edu/visual.calculus/1/continuous.9/index.html

I am stuck at factoriig the botton of the equation. which is x^2-3x+2

Thanks.

2007-02-09 04:12:09 · 9 answers · asked by Anonymous in Mathematics

2007-02-09 04:11:55 · 2 answers · asked by IshotJR 2 in Earth Sciences & Geology

In different articles I find for example Apolipoprotein E gene written like APOE or ApoE, sometimes also using italic... Why? Are there any rules or given conventinos how to treat the abbreviations of the gene names?

2007-02-09 04:11:42 · 3 answers · asked by zuska m 2 in Biology

2007-02-09 04:11:21 · 7 answers · asked by Anonymous in Mathematics

I was feeding apples to a family of 12 deer at my parents' home, as I always do, and out of the blue one deer initiates a kicking frenzy with three others. Why did he do this?

2007-02-09 04:11:03 · 10 answers · asked by LUCKY3 6 in Zoology

2007-02-09 04:09:11 · 3 answers · asked by liloofar 3 in Chemistry

2007-02-09 04:08:09 · 3 answers · asked by IshotJR 2 in Biology

What is the total energy of a two body system and how do we get it?

2007-02-09 04:04:05 · 1 answers · asked by Anonymous in Physics

I want to move some banana trees from one place in the yard to another. I live in Texas. When is the best time to move them? Winter / Spring / Summer / Fall? Is it best to move them when it is cold because they are dormant or better to move them in the Spring when they are blooming and "active"? Thanks!

2007-02-09 04:03:55 · 4 answers · asked by lmiori 1 in Botany

2007-02-09 04:01:45 · 16 answers · asked by Anonymous in Chemistry

2007-02-09 04:00:31 · 11 answers · asked by Anonymous in Chemistry

jst check out ur .....tru......patroitism

2007-02-09 03:58:31 · 25 answers · asked by chivalrous_prashant 1 in Geography

2007-02-09 03:58:17 · 6 answers · asked by sedwards28 2 in Biology

The equation are all in vectors. I know a.b is a scalar, question is can I just take the first b x the b beside it to form |b|^2 ? If so then what about the dot? I'm confused about the part how to expand (a.b)b. Can somebody pls help clarify? Thanks!

2007-02-09 03:57:20 · 3 answers · asked by Mathlover 1 in Mathematics

is removed leaving a hole 24cm across the top, and 8cm deep. What is the radius of the ball in cm?

2007-02-09 03:56:47 · 10 answers · asked by Arnold M 1 in Other - Science

With a link to where the info came from. Thank you.

2007-02-09 03:55:25 · 2 answers · asked by daivzhavue 2 in Weather

2007-02-09 03:54:57 · 7 answers · asked by filmmanstan 1 in Geography